SSC CHSL 2020 Official Paper 12 (Held On: 16 April 2021 Shift 3) (Previous Year Paper)

The correct answer is "Option 3".

Key Points

• An octagon is an eight-sided polygon.
• A pentagon is a polygon having five sides.
• A heptagon is a polygon having seven sides, also known as "Septagon".
• A hexagon is a six-sided polygon.

Hence the most appropriate one-word substitution is "Heptagon".

The correct answer is "Option 2".

Key Points

• In order to solve the jumbled sentences, we should always find out the first sentence that would be the introductory sentence.
• Here the sentence "B" is the introductory sentence as it talks about "California".
• Most of the time, second sentence can be found with the help of link and usage of pronoun in the sentence.
• The sentence "C" starts with the pronoun "it" and explains more about "California"
• The third sentence will always explain more about the part of the second sentence.
• The sentence "A" explains more about "California and how this name was derived".
• Finally, we are left with the last sentence i.e. "D".

Hence, the right order to form a meaningful paragraph is "BCAD".

The correct answer is "Option 2".

Key Points

• If we look at the options, Facsinate is the word that is misspelled.
• The correct spelling of this word is "Fascinate" which means "to have someone's complete interest and attention"
• My younger son is fascinated by fiction stories.

Additional Information

Let's look at the other options:

• Architect (noun) means "a person who plans, designs & oversees the construction of buildings".
• My brother is an architect and he has constructed many buildings.
• Obscene (adjective) means "offensive, rude or shocking because of being too obviously related to sex".
• Obscene language is being used in many web series just for the sake of earning popularity.
• Abscess (noun) means "a painful swollen area on or in the body that contains pus".
• You should take care of this abscess on your shoulder.

Finally, the incorrectly spelled word is "Facsinate".

The correct answer is "Option 4".

Key Points

• Divulge (verb) means "to make something secret known" or "disclose".
• For example, You should know how to divulge the information to the customer.
• In the given options, reveal (verb) means "to make known something usually secret or hidden".
• For example, She revealed her love story to her best friend.

Hence the appropriate synonym is "reveal"

Additional Information

• Suppress (verb) means "to end something by force".
• I could not suppress my anger before an irritating customer.
• Conceal (verb) means "to hide something".
• We should never conceal our health problems with the doctor.
• Decide (verb) "to choose something after thinking carefully about several possibilities".
• I finally decided to join this organization.

At last, the final answer is "Reveal".

The correct answer is "Option 2".

Key Points

• It can be understood that the given sentence is in "past indefinite tense" due to the usage of "did not".
• There will be "did not & verb 1^st form" in the negative sentence of past indefinite tense.
• For example, I did not go to school yesterday due to a high fever.
• Let's look at the options:
• Option 1 "so he does not carry his own" is in the present tense that does not match with the main sentence so it's incorrect.
• Option 3 "so he did not carried his own" is incorrect because "There should be did not and verb 1^st form in past indefinite tense".
• Option 2 "so he did not carry his own" is correct because it's in the past tense that makes the main sentence meaningful.

Hence, the correct sentence is "Kunal did not anticipate the need, so he did not carry his own water bottle".

The correct answer is "Option 4".

Key Points

• In the given sentence, a kind of report that was asked by the team leader should be no more than one page.
• So all in all, the report has to be brief but comprehensive.
• If we look at the given options
• Complex (adjective) means "difficult to understand because of having many different parts".
• For example, The news article was so complex that I could not understand it.
• Compound (noun) means "Combination" or "Something consisting of two or more different parts".
• For example, Salt is a compound of sodium and chlorine.
• Curt (adjective) means "rudely blunt and brief".
• For example, She gave me an extremely curt answer.
• Concise (adjective) means "Short and clear with necessary words".
• He wrote a concise summary of the editorial.

Hence, the correct answer that makes the given sentence meaningful is "Concise".

The correct answer is "Option 2".

Key Points

• Novice means "a person who is starting to learn a job or an activity and has no experience.
• For example, I am just a novice at teaching kids.

So the accurate answer is "Beginner".

Additional Information

Let's understand the other options.

• Expert (adjective) means "having or showing a lot of knowledge or skill".
• For example, Our financial advisors provide expert advice to their clients.
• Adept (adjective) means "skilled".
• For example, He is adept at making people happy.
• Silent (adjective) means "without any sound".
• For example, My street remains as silent as the grave during winters.

The correct synonym of Novice is "Beginner".

The correct answer is "Option 2".

Key Points

• Whenever we convert indirect speech to direct speech, it's important to remember the following points:
• The conjunction "That" should be changed into inverted commas(," ")
• Make changes in the reported speech clause according to the type of sentence.
• Change time and place references like "that day" into "today", "the day before" into "yesterday", "the following week" into "next week", etc.
• For example: 
• He said that he lived in Delhi. (Indirect)
• He said, "I live in Delhi. (direct)
• She said that she would call me the following day. (indirect)
• She said, " I will call you tomorrow. (direct)

Based on the above points & examples, the correct sentence should be "They said, "We will issue the certificate next week".

The correct answer is "Option 2".

Key Points

The idiom "a sea change" means "a profound or notable transformation" or "a complete change".

For example: 

• I observed a sea change in his personality after marriage.
• We can feel a sea change in the agenda of the political parties during the recent election.

Hence, the accurate answer is "Complete transformation".

The correct answer is "Option 4".

Key Points

• In the sentence, someone is sorry because the one goes into a place where the one is not expected to be.
• Intrude on/into (verb) means "to go into a place or situation in which the person is not expected to be".
• Intrude means intervene or invade.

So base on the above points, the appropriate word is "Intrude".

Additional Information

• Interrupt means "to stop something from happening for a short period".
• For example, You are really impatient and always interrupt my speech.
• Instruct means "to tell someone to do something formally".
• For example, Students were instructed to stay in a queue.
• Interfere means "to involve yourself in a situation when your involvement is not helpful".
• He should never interfere between a husband and wife.

Important Point

• In the given options, Intrude is the only word that makes the sentence meaningful and follows the preposition "On".

Hence, the correct sentence is "I am sorry to intrude on you at this late hour".

The correct answer is "Option 3".

Key Points

• The given sentence is in Present Indefinite Tense because "routine & habit" can be expressed in this tense.
• In Passive Voice - Present Indefinite Tense, we always use the helping verb is/am/are and main verb 3^rd form.
• The Object comes in the beginning, and the doer (subject) comes with the preposition "by".

Based on the above instructions, the accurate sentence would be "Dirty clothes are washed by the poor washerwoman from morning to evening."

Additional Information

• The basic rule for Present Indefinite Tense - Passive Voice:
• Object + is/am/are + verb 3^rd form + by + doer (subject).
• For example:
• Rocky cooks food in the morning.
• Food is cooked by Rocky in the morning.
• Robin always speaks the truth.
• The truth is always spoken by Robin.

At last, the correct sentence is "Dirty clothes are washed by the poor washerwoman from morning to evening".

The correct answer is 'Option 1'.

Key Points

• The sentence is in "Past Indefinite Tense", and it's an "interrogative sentence".
• In such sentences, we always use "did & verb 1^st form".
• So, using verb 2^nd form i.e. kept, is inappropriate here.

We should use 'Where did you keep', instead of 'Where did you kept'.

Additional Information

The basic rule for Past Indefinite Tense (Interrogative Sentence):-

• Wh family + did + subject + verb 1^st form + object?
• Why did you go there? not (went there)
• Where did you meet him yesterday?
• How did you solve that sum?

Hence, the correct sentence is "Where did you keep the sack of wheat that I bought from the market"?

The correct answer is 'genuine'.

Key Points

• Spurious means false, not what it appears to be or based on false information, and therefore not to be trusted (बनावटी यद्यपि देखने में सच्चा लगता हो; अवैध; जाली; नक़ली).
• For example, Her fiance made a spurious claim about being a member of a royal family.
• The antonym of Spurious can be authentic, genuine, or real.

Additional Information

Let's understand the meaning of other options.

• Counterfeit (जाली, नक़ली, प्रतिलिपि के रूप में) means "made to look like the original of something, usually for illegal purposes". (counterfeit passports)
• Artificial (मानव द्वारा बनाया गया, न कि प्राकृतिक; कृत्रिम, नक़ली; अप्राकृतिक) means "made by people, often a copy of something natural". (artificial flowers)
• Phony (अवास्‍तविक, नक़ली; बनावटी) means "not real, falsely pretend to be something". (John gave a phony address to the police)

Hence, the accurate answer is 'Genuine'.

The correct answer is 'Option 3'.

Key Points

• A close-fitting cover for the blade of knife or sword is known as 'Sheath'.
• Moreover, 'a close-fitting covering to protect something is also known as Sheath'.
• For example, I always prefer to buy a thermoplastic-sheathed cable.

Based on the above points, it's clear that the accurate answer is "Sheath".

Additional Information

Let's understand the meaning of other options.

• Carrier (noun) - One that carries, bearer, messenger.
• Case (noun) - a set of conditions, a situation requiring investigation.
• Shield (noun) - something or someone used as protection.

Hence, the correct answer is '**Sheath'.

The correct answer is "Option 4".

Key Points

• In the given sentence, there is a connection between a noun 'a bell' and a clause 'jingled whenever a customer entered'.
• 'Relative pronoun - that' is always used to connect a clause or phrase with people or things.

The given sentence is accurate, so there is no substitution required.

Important Points

• in 'Option 1 - which jingled wherever', a wrong conjunction 'wherever' can be seen that makes no sense with the given sentence,
• In 'Option 2 - who jingles whenever', an incorrect relative pronoun 'who' can be seen that is used for people only, not for the object like a bell.
• In 'Option 3 - that jingle when', we can see the wrong usage of tense 'jingle' and conjunction 'when', whereas the given sentence is in the past tense.

Based on above points, No substitution is required.

Additional Information

• Relative pronouns like 'Who' or 'Which'  always connect a clause or phrase to a noun or pronoun.
• 'Who' is always used for people. For example, I know the person who lives here.
• 'Which' is always used for objects & animals. For example, My mobile, which I bought last week, is lost.

Hence, the correct sentence is 'There was a bell over the door that jingled whenever a customer entered.

The correct answer is 'Option 3'

Key Points 

• Whenever we get the jumbled sentences to arrange in order, first of all, try to figure out the first sentence.
• In the given sentences, "B" should be the first sentence as it's independently talking something about deserts.
• then we need to find the linking sentence based on the first sentence.
• The sentence "A" starts with "in such places" that is explaining more about the deserts and their sand, so it should be the second sentence.
• Now the sentence "D" explains more about the sand and 'sand dunes', so it should be the third sentence.
• Finally, we are left with the sentence "C", that's our last sentence which talks about sand dunes.

Hence, the final sequence can be formed as "BADC" which gives accurate meaning to the whole para.

The correct answer is 'Option 2'

Key Points

• It's not required to use 'return back', just 'return' is enough.
• Whenever we use such unnecessary words, it makes the sentence 'superfluous' (which goes beyond what is required or enough)
• For example, After spending ten years in prison, he has returned home. (not returned back)

Additional Information

• Many of us make the same mistake with 'revert back' where 'revert' is enough to explain the context.
• For example. If you require any further assistance please revert. (not revert back)

Thus, the accurate sentence is 'Pavan returned home when he completed his assignment abroad'.

The correct answer is 'Option 3'

Key Points

• If someone kills in cold blood, it means "kill in a way that seems really cruel, intentional and without emotion".
• For example, He murdered him in cold blood.
• **That's why the appropriate meaning of the phrase "In cold blood" is **"Cruelly, without any emotion"

Additional Information

• In mountainous areas means 'having many mountains'
• Accidentally means 'to occur unexpectedly or by chance'
• By freezing to death means 'to die from the cold'.

So the final answer is "Cruelly, without any emotions".

The correct answer is "clear"

Key Points

• Hazy (adjective) means
• "Due to light mist or dust, things are hard to see in hazy weather". (हल्की धुंध या धूल के कारण धुंध के मौसम में चीजें देखना मुश्किल है) 
• For example, it was a hazy day yesterday.
• "Uncertain or confused about something". (किसी बात को लेकर अनिश्चित या भ्रमित होना)
• For example, I have a hazy idea of competitive exams.
• "Not remembering things clearly". (चीजों को स्पष्ट रूप से याद नहीं रखना) 
• For example, they were some hazy memories of my childhood.

That's why the antonym of 'Hazy' is 'Clear'.

Additional Information

• Faint (adjective) means 'feeling weak and getting unconscious'. (कमजोर महसूस करना और बेहोश हो जाना)
• Soft (adjective) means 'not being hard or firm' (कठोर या दृढ़ नहीं होना)
• Dim (adjective) means 'not having much light' (ज्यादा रोशनी नहीं होना)

Hence, the correct antonym of 'Hazy' is 'Clear'.

The correct answer is 'Option 4'

Key Points

• "Brutle' is the misspelt word, the correct spelling of this word is "Brutal".
• Brutal means 'inhuman, cruel, or harsh'.
• It's an adjective that can be used to modify & describe a noun or pronoun. For example, He was sent to jail for the brutal murder of an innocent.

Additional Information

• Cruel (adjective) means 'someone who causes pain or distress to people or animals.
• Coarse (adjective) means 'someone who talks and behaves rudely and offensively.
• Junior (adjective) means someone who holds a low-ranking position in an organization.

Hence the correct answer is 'Brutle' which is misspelt in the given options.

The correct answer is "Option 1"

Key Points

• Let's see the context of the passage and the meaning of the words mentioned in the options.
• In the passage, a situation has been explained where the writer was going to Rohana and a girl boarded the train.​
• Let us refer to this line from the passage, "I had the train compartment to myself up to Rohana and then a girl got in. The couple who saw her off were ______ her parents".
• Let's refer to the next line "They seemed very anxious.." In this line word they is referring to Noun "Parents".
• From the above sentence, It is understood that the couple who saw her off were her guardian, there is a high chance that they may be parents.
• In option 1, 'Probably' is an adverb and it is used to express 'high chance of happening' On the other hand, the rest of the options i.e. 'absolutely', 'exactly' and 'likely' express a kind of certainty or surety anyhow.
• That's why 'Probably' is the correct option for blank No. 1

The complete passage is- I had the train compartment to myself up to Rohana and then a girl got in. The couple who saw her off were (1)probably her parents. They seemed very anxious (2)about her comfort and gave the girl (3)detailed instructions as to where to keep (4)her things, when not to lean out and how to (5)avoid speaking to strangers.

Additional Information

• Let's look into the meanings of other words: 
• Absolutely (Adverb) :- means 'totally' or 'completely'.
• Example :- He is absolutely right.
• ​Exactly (Adverb) means:- "something is accurate" or "no more no less",
• Example :- The journey will take exactly four hours.
• ​​Likely (adverb) means 'doubtlessly'
• So the correct sentence is - The couple who saw her off were probably her parents".

The correct answer is option 1.

Key Points

• In the passage, a situation has been explained where the writer was going to Rohana and a girl boarded the train. The parents were worried or concerned about their daughter's comfort.
• Let us refer to this line from the passage, "The couple who saw her off were probably her parents. They seemed very anxious ______ her comfort".
• From the above sentence, It is clearly understood, being a parent, it's natural that they would be really worried about their daughter.
• In option 1, 'about' is a preposition and when it's followed by the word anxious, it shows concern.
• 'Anxious about' refers to the subject of worry, (worried about someone or something)
• That's why 'about' is the correct option for blank No. 2

The complete passage is- I had the train compartment to myself up to Rohana and then a girl got in. The couple who saw her off were (1)probably her parents. They seemed very anxious (2)about her comfort and gave the girl (3)detailed instructions as to where to keep (4)her things, when not to lean out and how to (5)avoid speaking to strangers.

Additional Information

• Let us look into the meanings of other words:
• During (preposition) means 'throughout the course'. For example: During the interview, they ask many questions.
• With (preposition) means "being together or being involved", For example, I was with my brother at the grocery store.
• Over (preposition) means "position at a higher level than something else". For example, A bird flew over the lake.

The correct answer is option 3.

Key Points

• In the passage, the parents were worried or concerned about their daughter's comfort. They gave instructions to follow to have a safe journey.
• Let us refer to this line from the passage, "They seemed very anxious about her comfort and gave the girl ______ instructions...".
• From the above sentence, it's clear that we need to find out, what kind of instructions were given by the parents.
• If someone has to follow the instructions, so they have to be specified, detailed & descriptive.
• In option 3, 'detailed' is the word that is the most suitable, on the contrary, the rest of the options i.e. "concise", "general" & "unspecified" are almost the opposite.
• That's why 'detailed' is the correct option for blank No. 3.

The complete passage is- I had the train compartment to myself up to Rohana and then a girl got in. The couple who saw her off were (1)probably her parents. They seemed very anxious (2)about her comfort and gave the girl (3)detailed instructions as to where to keep (4)her things, when not to lean out and how to (5)avoid speaking to strangers.

Additional Information Let us look into the meanings of other words: 

• Concise (adjective) means "short & clear". For example, I would like to write a concise summary of this poem.
• General (adjective) means "not detailed but the most basic information", For example, He can only speak in general terms.
• Unspecified (adjective) means "not described in detail". For example, Whatever you shared with me, was unspecified.

The correct answer is option 3.

Key Points 

• In the passage, the parents gave detailed instructions to follow such as 'where to keep the things.
• Let us refer to this line from the passage, "They seemed very anxious about her comfort and gave the girl detailed instructions as to where to keep ______ things.."
• From the above sentence, it's clear that we need to find out the relative pronoun that will be used in the place of noun.
• Here the noun is "girl" and the relative pronoun should be "her"
• That's why 'her' is the correct option for blank No. 4.

The complete passage is- I had the train compartment to myself up to Rohana and then a girl got in. The couple who saw her off were (1)probably her parents. They seemed very anxious (2)about her comfort and gave the girl (3)detailed instructions as to where to keep (4)her things, when not to lean out and how to (5)avoid speaking to strangers.

Additional Information Let us understand a little bit about relative pronoun. (The pronoun that will show relation) for example, This is my bag.

• I am doing my work.
• He is doing his work.
• She is doing her work.
• We are doing our work.
• They are doing their work.

The correct answer is option 2. 

Key Points

• In the passage, the parents gave detailed instructions to follow such as "where to keep the things, when to stop getting involved, and many others".
• Let us refer to this line from the passage, "They seemed very anxious about her comfort and gave the girl detailed instructions as to where to keep her things, when not to lean out and how to ______ speaking to strangers."
• If we look at the given options, we would easily understand that speaking can't be rejected, protected, or protested, it can only be avoided.
• So all in all, the parents want their girl to avoid speaking to strangers.
• That's why 'avoid' is the correct option for blank No. 5.

The complete passage is- I had the train compartment to myself up to Rohana and then a girl got in. The couple who saw her off were (1)probably her parents. They seemed very anxious (2)about her comfort and gave the girl (3)detailed instructions as to where to keep (4)her things, when not to lean out and how to (5)avoid speaking to strangers.

Additional Information 

The exact meaning of Lean out is to bend, tilt. For example, A child was leaning out of a car window.

As a phrasal verb Lean out means "avoiding engagement" or "not getting involved in a situation that adversely affect your well-being".

Given: 

The logic followed here is:

(1) One shape has moved inside the circle in the anticlockwise direction and the one inside the circle has moved outside but in the same place in each step.

(2) All the shapes that are outside the circle are rotating in clockwise direction (from one corner of the square to another).

The answer figure should have:

(1) 

should be inside the circle and

 should move outside.

(2) 

 should move to the bottom left corner, 

 to the upper left corner, and 

 to the upper right corner of the square.

Thus, the complete series is as follows,

Hence, option (1) is the correct answer.

Given: 

Logic: If two dice have same face value in given image than their clockwise or anticlockwise wise number/letter are know as opposite number/letter in dice.

While moving in clockwise direction from common face (B) of dice (1) and dice (3):

From the both dices:

 

Now, F is opposite to E, thus F will be on the face opposite to the face having E.

Hence, F is the correct answer.

From the given information,

(1) Revati is the sister of Sujit.

(2) Pranjal's mother is married to Sujit.

(3) Bhavita has one son and one daughter.

(4) Lopa is the sister of Pranjal, who is the paternal grandson of Bhavita, implies Sujit is the son of Bhavita.

(5) Lopa is the daughter of Ramya, implies Ramya is married to Sujit. Thus, the final family tree is as follows,

Hence, Revati is the husband's sister of Ramya.

(1) PMJG 

(2) USPL

(3) YWTP

(4) MKHD

Hence, PMJG is the odd one.

The Logic here is as follows:

Given: 263 ∶ 271

The Logic here is as follows:

263 and 271 both are prime numbers and between both prime numbers only one prime number is '269' coming.

Now we check all the options-

Option (1): 261 ∶ 267

Here, 261 and 267 both are not a prime numbers.

So, this option is not follow the pattern.

Option (2): 23 ∶ 293

Here, 23 and 293 both are a prime numbers but between both prime number many prime number ‘29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283’ are coming.

This option is not follow the pattern.

Option (3): 223 ∶ 233

Here, 223 and 233 both are a prime numbers but between both prime number two prime number ‘227, 229’are coming.

This option is not follow the pattern.

Option (4): 317 ∶ 337

Here, 317 and 337 both are a prime numbers and between both prime number only prime number ‘331’ are coming.

This option is follow the pattern.

Hence, option (4) is correct answer

The logic followed here is:

All numbers are multiples of 33 except 177.

By checking options:

(1) 198 → 33 × 6 = 198

(2) 177 → not a multiple of 33.

(3) 132 → 33 × 4 = 132

(4) 165 → 33 × 5 = 165

Hence, 177 is the correct answer.

Given: 

By checking options:

(2) 

(3) 

(4) 

Thus, only option (1) is not hidden in the given figure.

Hence, option (1) is the correct answer.

Arranging all the words as per their order in the dictionary:

5. Decamp
6. Decapitate
7. Deceive
8. Decency
9. Deceptive

Hence, 5, 3, 1, 4, 2 is the correct order.

The least possible Venn diagram is:

Conclusions : 

I. Some roses are pins → Ture (as some pins are roses, implies some roses are pins)

II. Some pins are not machines → True (as some pins are roses, no rose is a machine, implies some pins which are roses are not machines).

III. All machines are pins → False (it is possible but not definite as shown in diagram above that no pin is machine is possible).

Additional Information

Given: r r p p s _ p _ s s r _ s s r _ _ p

By checking the options:

(1) p r p p s → r r p p s p / p r s s r p / s s r p s p

(2) s s r p p → r r p p s s / p s s s r r / s s r p p p

(3) s p r r p → r r p p s s / p p s s r r / s s r r p p

r r p p s s (repeat)

(4) s r r s p → r r p p s s / p r s s r r / s s r s p p

Option (3) gives a pattern of r r p p s s / p p s s r r / s s r r p p.

Hence, s p r r p is the correct answer.

Given:

LIABILITY is coded as 141 and OFFICIATE is coded as 166.

The logic is here:

Sum of opposite alphabets place value and subtract by 3.

Table show alphabet serial number –

LIABILITY is coded as 141,

Step 1 → Sum of all opposite alphabets place value is

15 + 18 + 26 + 25 + 18 +15 +18 + 7 + 2 = 144

Step 1 → Subtract by 3.

144 – 3 = 141

And

OFFICIATE is coded as 166,

Step 1 → Sum of all opposite alphabets place value is:

12 + 21 + 21 + 18 + 24 + 18 + 26 + 7 + 22 = 169

Step 1 → Subtract by 3.

169 – 3 = 166

Similarly,

STATUTORY = ?

Step 1 → Sum of all opposite alphabets place value is:

8 + 7 + 26 + 7 + 6 + 7 + 12 + 9 + 2 = 84.

Step 1 → Subtract by 3.

84 – 3 = 81

Hence, ‘STATUTORY’ is coded as “81”.

By counting the triangles:

Alternate Method

The triangles are → ADE, AEC, ACB, DEG, DGH, HGI, IGE, EIF, FEC, CFB, ABF, AEF, AEB, EBF, DEI, DIH, DEH, HEI, ADF, DFI, AFI, AID → 22 triangles.

Hence, 22 is the correct answer.

Given: 14, 28, 31, 124, 129, ?

The logic followed here is:

Hence, 774 is the correct answer.

Given: A father’s age at the time of the birth of his son is the same as the present age of the son.

Now, let the present age of father be 'F', and that of his son be 'S'.

⇒ F - S = S

⇒ F = S + S

⇒ F = 2 × S

Now, If the age of the son was 15 years five years ago, 

⇒ S - 5 = 15

⇒ S = 20 years.

Then, F = 2 × 20

F = 40 years

Hence, the current age of the father is 40 years.

Given: UDM : YZQ :: QCT : ?

The logic followed here is:

Similarly;

Hence, UYX is the correct answer.

Alternate Method

Similarly, 

Hence, UYX is the correct answer.

Given: (850, 645, 410) 

The logic followed here is:

(850, 645, 410) → 850 - 645 = 205 → 205 × 2 = 410

By checking options,

(1) (751, 396, 544) → 751 - 396 = 355 → 355 × 2 = 710

(2) (558, 256, 356) → 558 - 256 = 302 → 302 × 2 = 604

(3) (440, 229, 422) → 440 - 229 = 211 → 211 × 2 = 422 

(4) (550, 402, 135) → 550 - 402 = 148 → 148 × 2 = 296

Hence, (440, 229, 422) is the correct answer.

The logic followed here is:

Cube of odd number - 3

For 122 : 340 : 726

Option 1 → 2194 : 3372 : 4910

Option 2 → 2199 : 3377 : 4915

Option 3 → 1951 : 3084 : 4217

Option 4 → 1886 : 3068 : 4606

Hence, the correct answer is "2194 : 3372 : 4910".

Given: ‘Guitar’ is related to ‘Music Instrument’ in the same way as ‘Car’ is related to ‘______’.

The logic followed here is:

Guitar is a Music System.

Similarly,

Car is a Vehicle.

Hence, vehicle is the correct answer.

By checking the options:

All Applaud, Honour, and Admire are Synonyms.

Whereas, 

Criticize is the antonym of Applaud, Honour, and Admire.

Hence, criticize is the odd one.

Important PointsApplaud → show approval or praise by clapping.

Honour → regard with great respect.

Admire → regard with respect or warm approval.

Criticize → indicate the faults of (someone or something) in a disapproving way.

The logic followed here is:

The paper when unfolded, will look like:

Hence, option (3) is the correct answer.

Given: Rat : Rodent

The logic followed here is:

Rat is a Rodent.

Similarly, 

Ostrich is a Bird.

Hence, Ostrich : Bird is the correct answer.

Important PointsRodent → a gnawing mammal of an order that includes rats, mice, squirrels, hamsters, porcupines, and their relatives, distinguished by strong constantly growing incisors and no canine teeth. They constitute the largest order of mammals.

Reptile → a vertebrate animal of a class that includes snakes, lizards, crocodiles, turtles, and tortoises. They are distinguished by having a dry scaly skin and typically laying soft-shelled eggs on land.

Mistake Points(1) Whale is not a Shark. 

(2) Frog is not a reptile, it is an amphibian (small vertebrates that need water, or a moist environment, to survive).

(3) Cattle is not a Cow, but cow is a cattle.

Given: 

The logic followed here is: let the line AB be the mirror,

Detailed Explanation:

• The line AB is the mirror.
• The given image has 

 which will become 

 in the mirror image and 

 will become

 in the mirror image ⇒ Option 1 and 3 are eliminated.

• Option (2) is the water image of the given image not the mirror image ⇒ Option 2 is eliminated.

Hence, option (4) is the correct answer.

Given: Father, Men, Uncle

The logic followed here is: All fathers are men, all uncles are men, and some fathers are uncles too.

• Here, the father of A can be an uncle to B.
• Similarly, A's uncle could be the father of B.
• All fathers and uncles are men.
• Applying this logic, we get the following Venn diagram:

Hence, option (2) is the correct answer.

Given: 40 * 5 * 7 * 24 * 6 * 38

By substituting the signs option wise:

(1) +, ×, ÷, -, = 

⇒ 40 + 5 × 7 ÷ 24 - 6 = 38

LHS = 40 + 5 × 7 ÷ 24 - 6

= 40 + 5 × 0.292 - 6

= 40 + 1.46 - 6

= 41.46 - 6

= 35.46

≠ 38

⇒ LHS ≠ RHS

(2) ÷, -, ×, +, =

⇒ 40 ÷ 5 - 7 × 24 + 6 = 38

LHS = 40 ÷ 5 - 7 × 24 + 6

= 8 - 7 × 24 + 6

= 8 - 168 + 6 

= 14 - 168

= - 154

≠ 38

⇒ LHS ≠ RHS

(3) ÷, ×, -, +, =

⇒ 40 ÷ 5 × 7 - 24 + 6 = 38

LHS = 40 ÷ 5 × 7 - 24 + 6

= 8 × 7 - 24 + 6

= 56 - 24 + 6 

= 62 - 24 

= 38

⇒ LHS = RHS

(4) +, ×, -, ÷, =

⇒ 40 + 5 × 7 - 24 ÷ 6 = 38

LHS = 40 + 5 × 7 - 24 ÷ 6

= 40 + 5 × 7 - 4

= 40 + 35 - 4

= 75 - 4 

= 71

≠ 38

⇒ LHS ≠ RHS

Hence, ÷, ×, -, +, = is the correct answer.

Given: CANDLE is written as FMEOBD

The logic followed here is:

Similarly,

Hence, HOJYJG is the correct answer.

Given:

The selling price of each wristwatch = Rs. 1980

Concept used:

CP = SP × 100/(100 – Loss%)

CP = SP × 100/(100 + Profit%)

Calculation:

CP of 1 watch = 1980 × 10/11

⇒ Rs. 1800

CP of another watch = 1980 × 10/9

⇒ Rs. 2200

Total CP = 1800 + 2200

⇒ Rs. 4000

Total SP = 1980 × 2

⇒ 3960

Loss = 4000 – 3960

⇒ Rs. 40

∴ The entire transaction resulted in a loss of Rs. 40.

Shortcut TrickWhen Profit and loss % are the same and SP is also the same then it will give only a loss

• 10% -10% + (-10 × 10)/100

⇒ -1%

Loss = 3960 × 1/99

⇒ Rs. 40

∴ The entire transaction resulted in a loss of Rs. 40.

According to the question,

Sales turnover of Company E increased in 2015 - 2016 in respect of 2014 - 2015 = 1290 – 1080

⇒ 210 crore

Sales turnover of Company C in 2014 - 2015 = 850 crore

Sales turnover of Company C should be to match the increase of Company E = 850 + 210

⇒ 1060 crore

∴ Required answer is 1060 crore.

Given:

Marked price of footwear = Rs. 900

Concept used:

Successive discount

Calculation:

According to the question,

CP of footwear at which Charu brought that = 900 × 9/10 × 9/10

⇒ 9 × 9 × 9

⇒ Rs. 729

∴ She paid Rs. 729 for the footwear.

Alternate Method-10% -10% + (-10 × -10)/100

⇒ - 20% + 1%

⇒ - 19%

⇒ Actual discount = - 19%

So, CP = 900 × 81/100

⇒ Rs. 729

∴ She paid Rs. 729 for the footwear.

Given:

Length of the edge, a = 4.4 cm

Radius = 2 mm = 0.2 cm

Concept used:

Volume of cube = a³

Volume of cylinder = πr²h

Calculation:

Volume of the cube = (4.4)³

⇒ 85.184 cm3 

Now, Volume of the wire = πr²h

22/7 × 0.2²

⇒ 0.88/7

We know that, Volume of the cube = volume of the wire 

So, Length of the wire =  a³/πr²h

⇒ (85.184 × 7)/0.88 

⇒ 596.288/0.88

⇒ 677.6

∴ The length of the wire is 677.6 cm

Given:

6578x43267y

Concept used:

Divisibility rule of 9 = Sum of all digits is divisible by 9

Divisibility rule of 8 = Sum of last three digits is divisible by 8

Calculation:

6578x43267y

67y

⇒ 670 + y

⇒ 672 is divisible by 8

So y = 2

6578x432672

⇒ 6 + 5 + 7 + 8 + x + 4 + 3 + 2 + 6 + 7 + 2

⇒ 50 + x

⇒ 50 + 4 = 54 is divisible by 9

So x = 4

$\sqrt{x+6y}$

⇒ $\sqrt{4+6\times2}$

⇒ $\sqrt{4+12}$

⇒ $\sqrt{16}$

⇒ 4

∴ Required answer is 4

Total no. neon lamps having life 800 hours or more but less than 1000 hours = 80 + 70

⇒ 150

Total number of neon lamps having life 700 hours or less = 45 + 60 + 75

⇒ 180

Percentage = (150/180) × 100

⇒ 5/6 × 100

⇒ 83.33 ≈ 83%

∴  Required answer is 83%

Given:

Total no. of students = 84

Average = 95

Ratio of boys : girls = 10 : 11

Concept used:

Average = Sum of elements/no. of elements

Calculation:

Boys = 84 × 10/21

⇒ 40

Girls = 44

Let average score of girls = 5x

So, boys = 4x

According to the question,

40 × 4x + 44 × 5x = 95 × 84

⇒ 160x + 220x = 95 × 84

⇒ 380x = 95 × 84

⇒ 4x = 84

⇒ Average of boys = 84

∴ The average score of the boys in the test is 84

Shortcut Trick

⇒ $\frac{5x-95}{95-4x}=\frac{10}{11}$

⇒ 55x - 1045 = 950 - 40x

⇒ 95x = 1995

⇒ x = 21

⇒ 4x = 84

⇒ Average of boys = 84

∴ The average score of the boys in the test is 84

Given:

Simple interest = Rs. 2940

Time = $3\frac{1}{2}$ years

Rate = 10%

Formula used:

S.I = (P × t × r)/100

C.I = P(1 + r/100)ⁿ - P

Calculation:

Let principal be P

According to the question,

2940 = (P × 3.5 × 10)/100

⇒ P = Rs. 8400

C.I = 8400(1 + 5/100)³ - 8400

⇒ 8400 × (21/20)3 - 8400

⇒ 8400 × 9261/8000 - 8400

⇒ 9724.05 - 8400

⇒ Rs. 1324.05 ≈ Rs. 1324

∴ Compound interest will be Rs. 1324

Given:

21 tan θ = 20

Concept used:

tanθ = P/B

sinθ = P/H

cosθ = B/H

P = perpendicular

B = base

H= hypotenuse

Calculation:

We know 20, 21 and, 29 is a Pythagorean triplets

So, 21 tan θ = 20

⇒ tanθ = 20/21

⇒ sinθ = 20/29

⇒ cosθ = 21/29

(1 + sin θ - cos θ) : (1 - sin θ + cos θ)

⇒ (1 + 20/29 - 21/29) : (1 - 20/29 + 21/29)

⇒ (29 + 20 - 21)/29 : (29 - 20 + 21)/29

⇒ 28 : 30

⇒ 14 : 15

∴ Required value is 14 : 15

 

Total no. of person got concession = 2 + 7 + 6

⇒ 15

∴ 15 persons got the concession

Given:

x2 + y2 = 45

x - y = 5

Formula used:

(a - b)² = a² + b² - 2ab

a3 - b3 = (a - b)(a2 + b2 + ab)

Calculation:

x - y = 5

⇒ (x - y)² = 25

⇒ x2 + y2 – 2xy = 25

⇒ 45 – 2xy = 25

⇒ 2xy =  20

⇒ xy =  10

x3 - y3 = (x - y)(x² + y² + xy)

⇒ 5{45 + 10}

⇒ 5 × 55

⇒ 275

∴ Required answer is 275

Given:

cos2 30° + cos2 40°+ cos2 50° + cos2 60°

Concept used:

Sin(90 - θ)° = Cosθ

sin2θ + cos2θ = 1

Calculation:

cos2 30° + cos2 40°+ cos2 50° + cos2 60°

⇒ cos2 30° + cos2 40°+ cos2 (90 – 40)° + cos2(90 – 30)°

⇒ cos2 30° + cos2 40°+ sin2 40° + sin230°

⇒ cos2 30° + sin230° + cos2 40°+ sin2 40° 

⇒ 1 + 1

⇒ 2

∴ Required answer is 2

Export in 2013 = 240

Export in 2015 = 360

Export in 2017 = 420

Total export in three years = 240 + 360 + 420 = 1020

⇒ Average export in three years = 1020/3 = 340

Import in 2018 = 450

Required Percentage = (340/450) × 100 = 75.55% ≈ 75.6%

∴ Required percentage is 75.6%

Given:

$\rm \left(3\frac{2}{3}\ of\ \frac{3}{4}-\frac{1}{4}\ of\ \frac{4}{3}\right)\div\left(\frac{1}{4}\div\frac{3}{2}\right)+1\frac{1}{2}$

Concept used:

Calculation:

$\rm \left(3\frac{2}{3}\ of\ \frac{3}{4}-\frac{1}{4}\ of\ \frac{4}{3}\right)\div\left(\frac{1}{4}\div\frac{3}{2}\right)+1\frac{1}{2}$

⇒ $\rm \left(\frac{11}{3}\ \times\ \frac{3}{4}-\frac{1}{4}\ \times\ \frac{4}{3}\right)\div\left(\frac{1}{4}\div\frac{3}{2}\right)+1\frac{1}{2}$

⇒ $\rm \left(\frac{11}{4}\ -\frac{1}{3}\right)\div\left(\frac{1}{4}\div\frac{3}{2}\right)+1\frac{1}{2}$

⇒ $\rm \left(\frac{33; -;4}{12}\right)\div\left(\frac{1}{4}\times\frac{2}{3}\right)+\frac{3}{2}$

⇒ $\rm \left(\frac{29}{12}\right)\div\left(\frac{1}{6}\right)+\frac{3}{2}$

⇒ $\rm \frac{29}{12}\times6+\frac{3}{2}$

⇒ 29/2 + 3/2

⇒ 32/2

⇒ 16

∴ Required answer is 16

Given:

A is 28% less than B

C is 25% less than the sum of A and B

Calculation:

100A = 72B

⇒ 25A = 18B

⇒ A/B = 18/25

⇒ A : B = 18 : 25

Let A and B is 18x and 25x

4C = 3 × 43x

⇒ C = 32.25x

C – A = 32.25x – 18x

⇒ 14.25x

(14.25x/18x) × 100

⇒ 1425/18

⇒ 79.166 ≈ 79.2%

∴ C will be 79.2% more than A

Given:

∠APB = 112°

Concept used:

Concept of the line segment of the circle

Calculation:

In the given figure,

∠APB = 112°

AB is a chord

We know if a chord makes x° on the major arc of the circle then it will make 2x° on the center.

So, ∠AOB = 224°

But angle cannot be greater than 180°

So angle is = 360 - 224

⇒ 136° 

AO = BO = radius of the circle

So,

∠OAB = 44/2 = 22°

∴ The measure of ∠OAB is 22°

Given:

Normal speed of the person = 48 km/h

Concept used:

Speed = Distance/Time

Calculation:

Let he usually travels for 6x hours

So. his total distance = 48 × 6x

⇒ 288x km

According to the question,

He covered 288x × 2/3 = 192x km in 5x hours

So remaining 288x - 192x = 96x km

He will cover it in x hours

So, speed = 96x/x = 96 km/h

∴ He should travel 96 km/h to cover the remaining distance to reach his destination on time.

Shortcut Trick

Ratio 4 years ago = 4 : 5 (difference 1 unit); Ratio 8 years hence = 11 : 13 (difference 2 units).

Equate differences by multiplying the first ratio by 2: (4 × 2) : (5 × 2) = 8 : 10.

Growth of 3 units (11 − 8 or 13 − 10) corresponds to a total gap of 12 years (4 + 8).

3 units = 12 years ⇒ 1 unit = 4 years.

Present ages: A = (8 × 4) + 4 = 36; B = (10 × 4) + 4 = 44. Ratio = 36 : 44 = 9 : 11.

∴ The correct answer is 9 : 11.

Alternate Method

Given: Ratio of ages of A and B four years ago = 4 : 5 and eight years hence = 11 : 13.

Let the ages of A and B four years ago be 4x and 5x respectively.

⇒ Present age of A = 4x + 4

⇒ Present age of B = 5x + 4

⇒ Ages after 8 years: A = 4x + 12, B = 5x + 12

⇒ (4x + 12) / (5x + 12) = 11 / 13

⇒ 13(4x + 12) = 11(5x + 12)

⇒ 52x + 156 = 55x + 132

⇒ 3x = 24 ⇒ x = 8

⇒ Present age of A = 4(8) + 4 = 36 years

⇒ Present age of B = 5(8) + 4 = 44 years

⇒ Required Ratio = 36 : 44 = 9 : 11

∴ The correct answer is 9 : 11.

Additional Information

Constant Age Difference

The mathematical difference between the ages of two individuals always remains constant throughout their lives, regardless of the time elapsed.

Ratio Balancing Method

When two ratios at different time intervals are given, multiply the terms such that the difference between the ratio parts remains the same as the actual years passed.

Time Gap Logic

The total time gap between 'n' years ago and 'm' years hence is calculated as (n + m) years.

Given:

BD = 6 cm

AD = 3 cm

Formula used:

P² + b² = h²

Calculation:

AB² = AD² +  BD²

⇒ AB2 = 32 +  62

⇒ AB2 = 45

We know in right angle tringle if a line from vertex of 90° makes 90° on the hypotenuse then p²/h = base of the smaller triangle made by the line

As given in the figure

AD = AB²/AC

⇒ 3 = 45/AC

⇒ AC = 15 cm

∴ The length of AC is 15 cm

Given:

a3 + b3 + c3 - 3abc = 250

a + b + c = 10

Formula used:

x3 + y3 + z3 - 3xyz = (x + y + z){x2 + y2 + z2 - (xy + yz + xz)}

(x + y + z)² = x2 + y2 + z2 + 2(xy + yz + xz)

Calculation:

a3 + b3 + c3 - 3abc = 250

⇒ (a + b + c){a² + b² + c² - (ab + bc + ca)} = 250

⇒ {a2 + b2 + c2 - (ab + bc + ca)} = 25      ----(i)

a + b + c = 10

⇒ (a + b + c)² = 100

⇒ a2 + b2 + c2 + 2ab + 2bc + 2ca = 100      ----(ii)

By doing (ii) – (i) we get

3ab + 3bc + 3ca = 75

⇒ ab + bc + ca = 25

$\frac{1}{5}(ab+bc+ca)$

⇒ 1/5 × 25

⇒ 5

∴ The value of $\frac{1}{5}(ab+bc+ca)$ will be 5

Alternate MethodPut a = 5, b = 5 c = 0

a3 + b3 + c3 - 3abc = 125 + 125 + 0

⇒ 250

a + b + c = 5 + 5 + 0

⇒ 10

Both are satisfying

So, $\frac{1}{5}(ab+bc+ca)$ = 1/5(25 + 0 + 0)

⇒ 5

∴ The value of $\frac{1}{5}(ab+bc+ca)$ will be 5

Given:

$\frac{0.8×0.8×0.8+0.6×0.6×0.6}{0.08×0.08+0.06×0.06-0.08×0.06}$

Formula used:

(a)3 + (b)3 = (a + b)(a2 + b2 - ab)

Calculation:

$\frac{0.8×0.8×0.8+0.6×0.6×0.6}{0.08×0.08+0.06×0.06-0.08×0.06}$

⇒ $\frac{(0.8)^3;+;(0.6)^3}{(0.08)^2;+;(0.06)^2;-;0.08;×;0.06}$

⇒ (0.512 + 0.216)/(0.0064 + 0.0036 – 0.0048)

⇒ 0.728/0.0052

⇒ 140

∴ Required answer is 140

Alternate Method(1/1000)(8³ + 6³)/(1/10000)(8² + 6² - 8 × 6)

⇒ 10(8 + 6)(82 + 62 - 8 × 6)/(82 + 62 - 8 × 6)

⇒ 10 × 14

⇒ 140

∴ Required answer is 140

Mistake PointsPlease note that in Numerator it is 0.8 and 0.6 and in the denominator, it is 0.08 and 0.06

Given:

Radius of larger circle = 15 cm

Radius of smaller circle = 6 cm

Formula used:

Pythagoras theorem

Calculation:

Let O be the center of the circle, AB be the chord of the largest circle and C be the point on the smaller circle through which the chord passes

AO = 15 cm and OC = 6 cm

Applying Pythagoras theorem in AOC:

AC² = AO² - OC²

⇒ AC² = 15² - 6² 

⇒ AC2 = 225 - 36

⇒ AC2 = 189

⇒ AC = 3√21

AB = 2AC (A perpendicular drawn from the center of the circle to the chord bisects the chord)

AB = 2 x 3√21 = 6√21 cm

∴ The length of the chord of the larger circle that is tangent to the smaller circle is 6√21 cm

Given:

A can do in 4 days

B can do in 6 days

C can do in 12 days

Concept used:

One day work of x = 1/b

Here b = time to taken to complete the work

Calculation:

A's one day work = 1/4

B's one day work = 1/6

C's one day work = 1/12

A + B + C one work = 1/4 + 1/6 + 1/12

⇒ (3 + 2 + 1)/12

⇒ 6/12

⇒ 1/2

⇒ Time = 2 days

∴ They will complete in 2 days

Shortcut Trick

Total efficiency = 6

So, work will be complete in 12/6 = 2 days

∴ They will complete in 2 days

Given:

5k = tan θ

$\frac{5}{k}=\sec θ$

Concept used:

sec2θ – tan2θ = 1

Calculation:

5k = tan θ

⇒ k = tan θ/5

⇒ k² = tan² θ/25

$\frac{5}{k}=\sec θ$

⇒ 1/k = sec θ/5

⇒ 1/k² = sec² θ/25

$10\left(k^2-\frac{1}{k^2}\right)$

⇒ 10(tan2 θ/25 – sec2 θ/25)

⇒ 10{(tan2 θ/25 – sec2 θ)/25

⇒ 10(-1/25)

⇒ $-\frac{2}{5}$

∴  The value of $10\left(k^2-\frac{1}{k^2}\right)$ is $-\frac{2}{5}$

Given:

Ratio of sides of the triangle = 3 : 4 : 5

Formula used:

1/2 × base × height

Calculation:

Let sides are 3x, 4x, and 5x

According to the question,

5x - 3x = 3.6

⇒ 2x = 3.6

⇒ x = 1.8 cm

We know 3, 4, 5 are Pythagorean triplets

So, Area = 1/2 × 3x × 4x

⇒ 1/2 × 5.4 × 7.2

⇒ 19.44 cm²

∴ The area of the trinagle is 19.44 cm² 

Important Points

Some important Pythagorean triplets

(3, 4, 5), 

(5, 12, 13)

(8, 15, 17)

(7, 24, 25)

(20, 21, 29)

(12, 35, 37)

(9, 40, 41)

The correct answer is Wave Speed.

Key Points

• Wave Speed is the rate at which the wave moves through the water.
• It is measured in knots.
• A wave is visualized when a source vibrates and disturbs a particle in the medium. ​
• The most commonly used wave speed is the speed of visible light, an electromagnetic wave.

Additional Information

• Wave crest and trough
• The crest of a wave is the point on the medium that exhibits the maximum amount of positive or upward displacement from the rest position.
• The lowest surface part of a wave is called the trough.

The correct answer is Swami Vivekananda.

Key Points

• Swami Vivekananda
• ​Swami Vivekananda addressed the World Parliament of Religions in Chicago in 1893.
• Swami Vivekananda's original name was Narendranath Datta.
• Swami Vivekananda was a chief disciple of the 19^th-century Indian mystic Sri Ramakrishna Paramahamsa.
• Swami Vivekananda was the founder of Ramakrishna Mission (1897) and Ramakrishna Math.

Additional Information

• Rabindranath Tagore
• He was popularly known as 'Gurudev'.
• He wrote the national anthems of two countries, India and Bangladesh.
• Raja Ram Mohan Roy
• Raja Ram Mohan Roy the founder of the Brahmo Samaj.
• He was a great scholar and an independent thinker.
• He is known as the 'Father of Modern India' or 'Father of the Bengal Renaissance.
• Sri Aurobindo
• Sri Aurobindo was an Indian philosopher, yoga guru, maharishi, poet, and Indian nationalist.
• He was also a journalist, editing newspapers like Bande Mataram.

The correct answer is Shiny Abraham Wilson.

Key Points

• In 1992, Shiny Wilson became the first woman to carry India's flag at the opening ceremony of the Summer Olympic Games.
• She has been a National Champion in 800 meters.
• She represented India more than 75 times in international competitions.
• She collected a total of 18 gold and two silver medals from the seven South Asian Federation (SAF).

Additional Information

• Karnam Malleswari
• In 1994, she received the Arjuna Award and in 1999, she received the Rajiv Gandhi Khel Ratna award, India's highest sporting honor, and the civilian Padma Shri award.
• She is the first Indian woman to win a medal at the Olympics in 2000.

The correct answer is Spleen.

Key Points

• Spleen
• ​The spleen is the largest organ of the lymphatic system.
• It keeps all the body fluids balanced.
• It is made up of red pulp tissue that filters the old and damaged red blood cells, whereas, the white pulp tissue consists of the B and T cells that help to fight infections.
• The spleen is a bean-shaped organ that stores erythrocytes, lymphocytes, and phagocytes.
• The spleen recycles the old and damaged red blood cells and the white blood cells are stored.
• It also helps to fight against bacteria that cause diseases such as meningitis and pneumonia.

Additional Information

• Tonsil
• Tonsils are the two lymph nodes located on each side of the back of your throat.
• They function as a defence mechanism and help prevent your body from getting an infection.
• When it becomes infected, the condition is called tonsilitis.
• Thymus
• The thymus gland is a very unique organ that is at its largest in children and shrinks away as the body grows older.
• It is about 2.5 to 5 cm wide, 4 to 6 cm long, and 1cm thick at birth.
• Lymph node
• A lymph node, or lymph gland, is a kidney-shaped organ of the lymphatic system, and the adaptive immune system.
• A large number of lymph nodes are linked throughout the body by the lymphatic vessels.