SSC CHSL Previous Paper 47 (Held On: 24 March 2018 Shift 1) (Previous Year Paper)

The correct answer is incommunicable.

Key Points

• The correct spelling is I-N-C-O-M-M-U-N-I-C-A-B-L-E.
• It means incapable of being communicated or shared. it is an adjective.
• Ex. ‘It is difficult to share the incommunicable experiences of war.’
• Communicate: Share or exchange information, news, or ideas.
• Communicable: Able to communicate.
• The English prefix 'in' can also, however, mean “not.” Some examples of 'in' meaning “not” include insane, or “not” sane, independent, or “not” dependent, and incommunicable or “not” communicable.

Hence, the correct answer is 'Incommunicable.'

The correct answer is BAC.

Key Points

• The first sentence in the sequence should suitably follow ‘our’. A verb cannot follow so we cannot have sentence C as the first sentence in the sequence (‘our promote a kind…’ is not correct). Sentence B seems to be a proper sentence to follow ‘our’.
• ‘When we use our personal standards for…’
• Now, the question arises – personal standards for what?
• So, the next sentence can be A – personal standards for beauty.
• ‘When we use our personal standards for beauty to group others …’  - This is leading to a meaningful sentence.
• ​The sentence is completed when C becomes the final part.

Correct sentence: ‘When we use our personal standards for beauty to group others, we promote a kind of apartheid’

The correct answer is No improvement.

Key Points

• The word partition is a singular noun. So, has and not have should follow. So, we can eliminate option 1.
• Also, when the structure of the sentence is ‘has been + verb’, the verb takes its past participle form.
• Let us understand this by example:
• The cars have been washed. (past participle form of wash)
• The car has been manufactured by the Tata Group.  (past participle form of manufacture)
• Hence, we can eliminate option 3. (billed should be used and not bill)
• ‘Partition has been billed …’ is correct and needs no improvement.
• Therefore, the correct answer is option 4.
• Note – the word billed here means to declare officially.

Correct sentence: **'**The Partition has been billed (declared) as a distressing phase in the subcontinent’s history.'

The correct answer is No improvement.

Key Points

• We find that the first part of the sentence is in the simple present tense (I worry).
• The author is worried about something that is taking place.
• The next part of the sentence should be in the present tense as well. So, we can eliminate option 3.
• Also, the action is taking place and has not stopped. we should use ‘is killing’ and not ‘is killed’.
• Thus, no improvement is needed.

Correct sentence:** 'I worry that social media (is killing) creativity.'

The correct answer is Scant.

Key Points

• Let us look into the meaning of the given words:
• Scant – Very little or not sufficient, barely amounting to a specified number or quantity
• Ex. He does not scant his attention to the later writings
• Deluge – a very large amount of water or rain, a severe flood.
• Ex. A deluge of rain hit the plains
• Plethora – a large amount of something.
• Ex. A plethora of letters
• Surfeit – an excessive amount of something.
• Ex.  A surfeit of blood
• The word scant expresses the desired meaning.

Hence, the correct answer is 'Scant'.

The correct answer is Laceration.

Key Points

• Let us look into the meaning of the given words:
• Laceration – A deep tear or cut in one’s skin. Ex. The body showed signs of laceration and bruising.
• Termination – The act of ending something. Ex. The termination of the contract by the company
• Cessation – A temporary or the complete stopping of something. Ex. A cessation of conflicts
• Desistance – The act of stopping something. Ex. The cease-and-desist letter said that if the researchers should shut down the tool
• We can see that the word Laceration expresses the desired meaning.

Hence, the correct answer is 'Laceration'.

The correct answer is To trick or lie to someone in a playful way.

• The meaning of the phrase ‘Pulling your leg’ means to tease someone or to play a joke by telling something which is untrue.
• Example : ‘Stop pulling my leg – I know that you did not meet him’.

Therefore, the correct answer is 'To trick or lie to someone in a playful way.'

• Idioms related to 'pull':
• Pull your socks up - saying in an angry way that you should do something better.
• Pull the plug on an activity, you stop it,
• Pull the rug from under someone’s feet, you suddenly stop supporting them or do something that causes serious problems for them.

The correct answer is To make someone feel very interested in something.

Key Points

• The phrase ‘Fire the imagination’ means to make someone feel very enthusiastic (inspired / interested) to do something.
• Example : A successful athlete as a role model has the power to fire the imagination of the young children. 

Hence, the correct answer is 'To make someone feel very interested in something.'

Additional Information

• Other idioms about 'enthusiasm':
• (on the) edge of one's seat -  Very interested in something and finds it both extremely exciting and nerve-wracking.
• Ants in one’s pants - People who have ants in their pants are very restless or excited about something
• Go the extra mile - If you go the extra mile, you do more than what is expected of you
• Hold your horses - If you tell someone to hold their horses, you think they are doing something too fast and should slow down and not rush into further action.

The correct answer is By.

Key Points

• The word 'assertion' means a forceful and confident statement of fact or belief.
• The correct preposition that follows 'assertion' in the given context is by.
• We can use a phrase with 'by' to say who did the action: Ex. The new street was opened by the Mayor.
• ​This means that a confident statement stated by the leaders (without any proof) is sufficient for the followers of the leader to accept the claims/ideas. (acquiesce – to accept something without protest).
• This makes reasonable sense and is in line with the thought flow expressed by the author.

Correct sentence: 'Mere assertion by the leaders seems sufficient for the multitude of followers to acquiesce.'

Additional Information

• With - accompanied by (another person or thing).
• Ex. "a nice steak with a bottle of red wine"
• To - 
• Used to indicate the place, person, or thing that someone or something moves toward, or the direction of something.
• Ex. I am heading to the entrance of the building.
• Used to indicate a limit or an ending point:
• Ex. The snow was piled up to the roof.
• Used to indicate a relationship: 
• Ex. My answer to your question is in this envelop.
• Used to indicate a time or a period:
• Ex. I work nine to six, Monday to Friday
• At- 
• Used as a function word to indicate presence or occurrence in, on, or near
• Ex. Staying at a hotel
• Used as a function word to indicate the goal of an indicated
• Ex. Aim at the target
• Used as a function word to indicate that with which one is occupied or employed
• Ex. At work
• Used as a function word to indicate the means, cause, or manner
• Ex. Sold at auction
• Used as a function word to indicate age or position in time
• EX. Will retire at 65

The correct answer is Acceptance.

Key Points

• Looking at the structure of the sentence, we need a noun in the blank.
• The preposition 'of' follows a noun and not a verb.
• Note – The meaning of the word multitude: a large number of people
• Acceptance (noun) - the action of consenting to receive or undertake something offered or believe or come to recognize as valid or correct. ex. charges involving the acceptance of bribes
• Accept (verb) - Consent to receive or undertake (something offered). ex. he accepted a pen as a present
• Acceptor (noun) - a person or thing that accepts or receives something.
• Acceptant (Adjective) - willingly accepting (something).
• Here we have to use 'Acceptance' (come to recognize as valid), as acceptance of illogical idea makes sense. other options don't make sense.

Correct sentence: 'find this blind acceptance of illogical ideas by the multitude'.

The correct answer is Authoritatively.

Key Points

• Since the conjunction and is used before the blank, the word that fills the blank should be similar to ‘solemnly’.
• Also, the word should be equivalent in structure i.e., and connects two similar forms of words: Consider ‘…A and B…’ If A is a noun, so is B. If A is an adverb, so is B.
• For example, She likes cooking and dancing (not she likes cooking and to dance)
• Here, ‘solemnly’ is an adverb – a word that adds a description to the verb. (usually, adverbs end with –ly )
• Solemnly means showing determination and seriousness.
• We need an adverb to fill the blank in a similar context. Option 1 seems appropriate.
• Authoritatively means in a confident and respected manner.
• Therefore, the correct answer is option 1.

Correct sentence: 'solemnly and Authoritatively Particularly in the**'.

The correct answer is Without.

Key Points

• We need to understand the tone and the context of the sentence. The author states that the most illogical ideas are accepted (ideas which are not reasonable and lack logic).
• Now, we can sense the author’s surprise, shock or concern in this sentence.
• So, the most appropriate word to fill the blank will be without.
• This highlights the concerned tone of author. (If the most illogical ideas are debated or examined, then there will no hint of concerned tone in the sentence – so we cannot use ‘with’)

Correct sentence: ‘The most illogical ideas are accepted without dispute or examination…’

The correct answer is As.

Key Points

• ‘As’ is used to mean to the same extent or degree. Here, the sentence conveys that people take absurd ideas equal to truth.
• As is a conjunction. A conjunction is a more simple connecting word— it can connect everything from full sentences to individual words and does not itself define the relationship between the two items it connects.
• 'Like' is a preposition that means 'similar to'. A preposition is a word that positions nouns in relation to one another, i.e. the when, where, and how regarding the noun’s role in a sentence: in the house, at home, like him etc.
• Such - 

of the type previously mentioned. Ex. "I have been involved in many such courses"

• Just - very recently; in the immediate past. Ex. I've just seen the local paper
• 'As' fits perfectly in the given blank.

Correct sentence: ‘absurd ideas as truth, providing’

The correct answer is Encouragement.

Key Points

• The correct spelling is E-N-C-O-U-R-A-G-E-M-E-N-T.
• It means behaviour that gives someone confidence to do something.
• Ex.“The kids need encouragement from their parents”.

Hence, the correct answer is 'Encouragement'.

The correct answer is The principal said that he wanted to meet her parents.

Key Points

• In Direct speech, the message is conveyed in the words of the author or the concerned person.
• In Indirect speech, the message is conveyed in our words.
• When we convert Direct speech to Indirect speech,
• We omit the inverted commas.
• Also, the conjunction that is added before introducing the words spoken between quotation marks (“…”). So, we can eliminate option 1.
• We cannot change the tone of the sentence.
• The principal did not ask if he could meet her parents. He did not seek any such permission. So, we can eliminate option 4.
• Also, the simple tense changes to past tense. Here, wants will change to wanted.

Correct sentence: 'The principal said that he wanted to meet her parents'.

Subject is someone that works on the object.

When the subject performs the action – it is Active Voice.

When the subject is being acted upon by the verb – it is Passive Voice.

The meaning conveyed by the sentence in both voices will remain the same. Only sequence of the subject and the object (or the action) changes.

In Active voice – Subject + verb + object is the sequence.

In Passive voice – Object + verb + Subject is the sequence.

In the given sentence, Kiara is the subject because she is doing an action. She must deliver the needles. The action is done on the object which is the needles here. So, the sentence in the question is in its Active Voice.

To change it into passive voice, the sentence should begin with the object ‘the needles’.

While doing the conversion, the verbs are also changed. Some notable conversions are :

Active Voice : ‘She climbs the stairs everyday’

Passive Voice : ‘The stairs are climbed by her every day’

climbs --> were climbed

Active Voice :  ‘She is eating an apple.’

Passive Voice : ‘An apple is being eaten by her.’

is eating --> is being eaten

Following these thumb rules, the same sentence in the passive voice is

‘The needles must be delivered by Kiara’

We should not change the tone of the sentence. So, 'must' should be used and not 'should' (Option 3 is incorrect).

Therefore, the correct answer is option 2.

The correct answer is QRP.

Key Points

• The word that follows ‘the’ should be a specific noun. So, Q should be the first in sequence as ‘the state identifies…’ seems correct.
• This can be followed by R and the sentence so formed is  ‘When the state identifies some practices as incompatible with the civilised norms...’ (This indicates that some practices are not in accordance with the civilised norms.)
• This can be followed by P to complete the sentence meaning that such practices can be considered as inhuman.
• Therefore, the correct sequence is QRP, making option 2 the correct answer.

**Complete sentence: '**When the state identifies some practices as incompatible with the civilised norms demonstrate that these are wholly inhuman'.

the correct answer is DIsappoint.

Key Points

• Gratify means to make someone feel satisfied and pleased. So, we can eliminate option 1 as satisfy expresses a similar meaning.
• Disappoint expresses the opposite meaning and therefore, the correct answer is option 3.
• Pamper means to give someone special treatment. ‘She is pampered by her father’
• Enchant means to fill someone with great delight. ‘She was enchanted by his idea’ 

Hence, the correct answer is 'DIsappoint'.

The correct answer is Modest.

• Exorbitant - too high or too large or exceeding the customary.
• Ex. The exorbitant cost of the test.
• Ex. The school is charging exorbitant fees.
• Expensive and High are similar in meaning.
• Ex. keeping a car is expensive.
• Ex.a high-temperature
• Options 1 and 2 are eliminated.
• Modest means not large in size and amount.
• Ex. They live in a modest house
• This word expresses the opposite meaning.

Therefore, the correct answer is Modest.

The correct answer is Priority.

Key Points

• Let's have a look at the meaning of the given words:
• Precedence - is the condition of being considered more important.
• Ex. Village shoppers gave courteous precedence to a visiting foreigner
• Uprise – to stand or rise up. It can also mean an act of opposition by many people against those who are in power.
• Ex. Uprise! we have lots of work to do today!
• Insignificance – the quality of being unimportant
• Ex*. The matter of discussion was insignificant.*
• Priority – the fact of being treated as more important than the others.
• Ex. He was giving more priority to the family than his friends.
• We find that the word priority expresses the desired meaning

The correct answer is Effective.

Key Points

• The meaning of the cogent word is clear, logical and convincing
• Ex. a cogent argument, a cogent reason
• Invalid means something is no longer useful. So, option 1 is eliminated.
• Inconclusive means leading to no conclusion or result and Unlikely means doubtful. these are not similar in meaning. So, options 3 and 4 are also eliminated. Ex. that debate was inconclusive, ex. it's unlikely that he will show up.
• Effective is used to indicate that something works well and produces the desired results, therefore the 'effective' is closest to the meaning of 'cogent'.

The phrase that we are here referring to is ‘look through somebody or something’. It means to pretend not to notice somebody or something.

The sentence conveys that although he pleaded (begged/requested), she ignored/pretended to not notice his insincere apologies.

Therefore, the correct answer is option 4.

Complete sentence - Despite his pleas, she looked through his insincere apologies

The conjunction ‘but’ is used to connect ideas that contrast. Such contrast (or difference in tone/ action) is unexpected.

In order to get more clarity, let us consider the following sentence : Tim loves to dance but he does not dance in public. 

The first part tells us that Tim loves to dance. The second part is contrasting because it tells us that he does not dance in public. So, the conjunction but is used to connect ideas highlighting contrast.

In the given question, she was miserable still, she didn’t tell him about her misery. Thus, the ideas contrast and can be suitably connected by using but.

Therefore, the correct answer is option 2.

Complete sentence - She was miserable but she didn’t tell him

The error lies in part 1 of the sentence. Therefore, the correct answer is option 1.

Here, instead of later, we should use late. ‘During the late 19^th century’, ‘In the late 19^th century', 'By the late 19^th century' etc. are the correct ways in which we indicate the later part of the years 1801-1899.

Correct sentence - During the late 19^th and early 20^th centuries, forest preservation programmes were established in British India, the United States, and Europe.

The sentence is grammatically correct and contains no error. Therefore, the correct answer is option 4.

‘The’ is used before singular and plural nouns when the noun is specific. So, the use of ‘the’ before production of endorphins is correct. (‘… can trigger production of endorphins’ would have been incorrect).

As ‘Tyre’ is a part of ‘Car’, similarly, ‘Chapter’ is a part of ‘Book’.

The logic followed here is:

First term × 3 = Second term

In 41 : 123

41 × 3 = 123

Similarly,

In 31 : 93

31 × 3 = 93

Hence, the correct answer is "31 : 93".

The pattern followed here is:-

GPQ is related to ENO as:-

Similarly,

LNM is related to JLK as:-

Hence, the correct answer is "JLK".

The logic followed here is :-

Waterfall, River and Sea all are natural water resources.

Aquarium is not a natural water resource.

Hence, the correct answer is "Aquarium".

The logic followed here is:-

Number on left side = Number of right side + 2

1. In 62 – 60

62 = 60 + 2 → 62 = 62

2. In 74 – 70

74 = 70 + 2 → 74 ≠ 72 

3. In 18 – 16

18 = 16 + 2 → 18 = 18

4. In 34 – 32

34 = 32 + 2 → 34 = 34

It can be seen clearly that 74 – 70 doesn't follow the logic and is the odd one out.

Hence, the correct answer is "74 – 70".

The pattern followed here is:-

1. VUTS

2. RQPO

3. NMKJ

4. IHGF

It can be seen clearly from the above that ‘NMKJ’ is the odd one out as it does not follow the pattern.

Hence, the correct answer is "NMKJ".

The correct order of the given words as they would appear in an English dictionary is as shown below:-

2. Expertise 1. Expiration 5. Explosion 4. Exposed 3. Exposing

As can be seen clearly the word ‘Exposing’ will come at the LAST position.

Hence, the correct answer is "Exposing".

The pattern followed here is:-

Hence, the correct answer is "469".

The pattern followed here is:-

Hence, the correct answer is "NP".

Given → Ratio of the present ages of Piyush and Bharat is →11 : 13

Let the present age of Piyush be 11x and that of Bharat be 13x

The ratio of ages of Piyush and Bharat 15 years ago was → 17 : 21

So, the value of x is :-

11x - 15/13x - 15 = 17/21

21 (11x - 15) = 17 (13x - 15)

231x - 315 = 221x - 255

231x - 221x = -255 + 315

10x = 60

x = 6

Therefore, the present age of Piyush → 11x → 11 × 6

The present age of Piyush = 66

Hence, the correct answer is "66".

Given word → Commissioner

1) Common → Commissioner (all the letters are present so, the word can be formed)

2. Some  → Commissioner (all the letters are present so, the word can be formed)

3. Miss → Commissioner  (all the letters are present so, the word can be formed)

4. Trainer → Commissioner (Letters T and A are not present as well as only single R is present so, the word Trainer CANNOT be formed)

Hence, the correct answer is "Trainer".

The pattern followed here is:-

INDUCE is coded as MRHYGI

Similarly,

DEFECT is coded as HIJIGX

Hence, the correct answer is "HIJIGX".

Given → 9 ÷ 4 - 30 + 10 × 13 = ?

After replacing the symbols with their code

New Equation → 9 + 4 × 30 ÷ 10 - 13

Now, applying BODMAS Rule, we get:-

9 + 4 × 30 ÷ 10 - 13

9 + 4 × 3 - 13

9 + 12 - 13

21 - 13 = 8

Hence, the correct answer is "8".

Given equation → 8 - 4 ÷ 25 + 12 × 2 = 1

Checking options one by one:-

1. • and ×

After interchanging the signs we get:-

8 - 4 ÷ 25 × 12 + 2 = 1

Now, after applying BODMAS Rule we get:-

8 - 4 ÷ 25 × 12 + 2 = 1

8 - 0.16 × 12 + 2 = 1

8 - 1.92 + 2 = 1

8 + 2 - 1.92 = 1

10 - 1.92 = 1

8.08 ≠ 1

Left hand side is not equal to right hand side.

2) ÷ and -

After interchanging the signs we get:-

8 ÷ 4 - 25 + 12 × 2 = 1

Now, after applying BODMAS Rule we get:-

8 ÷ 4 - 25 + 12 × 2 = 1

2 - 25 + 12 × 2 = 1

2 - 25 + 24 = 1

2 + 24 - 25 = 1

26 - 25 = 1

1 = 1

Left hand side is equal to right hand side.

3) + and ÷

After interchanging the signs we get:-

8 - 4 + 25 ÷ 12 × 2 = 1

Now, after applying BODMAS Rule we get:-

8 - 4 + 25 ÷ 12 × 2 = 1

8 - 4 + 2.08 × 2 = 1

8 - 4 + 4.16 = 1

8 + 4.16 - 4 = 1

12.16 - 4 = 1

8.16 ≠ 1

Left hand side is not equal to right hand side.

4) - and +

After interchanging the signs we get:-

8 + 4 ÷ 25 - 12 × 2 = 1

Now, after applying BODMAS Rule we get:-

8 + 4 ÷ 25 - 12 × 2 = 1

8 + 0.16 - 12 × 2 = 1

8 + 0.16 - 24 = 1

8.16 - 24 = 1

-15.84 ≠ 1

Left hand side is not equal to right hand side.

Hence, the correct answer is "÷ and -".

The logic/rule followed here is:

11*8 = 6 → (11 – 8) × 2 = 6

19*7 = 24 → (19 – 7) × 2 = 24

14*6 = 16 → (14 – 6) × 2 = 16

Therefore,

12*9 = → (12 – 9) × 2 = 6

Hence, answer is ‘6’.

Hence, answer is ‘XYXYXWZY’.

Taxi T travels 1 km South, then turns to its right and travels a further 3.5 km. Meanwhile taxi U travels 2.5 km East, then turns North and travels 4 km, then it turns to its left and travels 6 km.

Hence, the correct answer is "5 km North".

The possible Venn diagram is as follows:

Conclusion I: Some polymers are rubbers → Doesn't follows (as it is not definite but possible)

Conclusion II: All rubbers are polymers → Doesn't follows (as it is not possible as 'No plastics are polymers')

Hence, the correct answer is  "neither conclusion I nor conclusion II follows".

The intersection of Rectangle and Triangle represent Event planners who are gamers.

Hence, the answer is ‘B’.

The pattern/logic followed here is:

X – 3 = U; U – 3 = R; R – 3 = O; O – 3 = L

Q – 3 = N; N – 3 = K; K – 3 = H; H – 3 = E

C – 3 = Z; Z – 3 = W; W – 3 = T; T – 3 = Q

Hence, answer is ‘LEQ’.

The pattern/logic followed here is:

Given series: 57, 52, 45, 36, 25, ?

57 – 5 = 52;

52 – 7 = 45;

45 – 9 = 36;

36 – 11 = 25

25 – 13 = 12

Hence, the correct answer is "12".

The logic/rule/relation followed here is:

1. (13, 25, 51) → [13; 13 + (13 – 1) = 25; 25 + (25 + 1) = 51]

2. (17, 33, 67) → [17; 17 + (17 – 1) = 33; 33 + (33 + 1) = 67]

3. (10, 19, 39) → [10; 10 + (10 – 1) = 19; 19 + (19 + 1) = 39]

4. (7, 13, 29) → [7; 7 + (7 – 1) = 13; 13 + (13 + 3) = 29]

Hence, the correct answer is "(7, 13, 29)".

The correct mirror image of the given figure when a mirror is placed on the line MN is as shown below:-

Hence, the correct answer is "Option 2".

Additional Information

• The mirror always forms the laterally inverted images, i.e. left changes to right and vice-versa.
• The reflection of an object in the water is called its water image.
• The water image of an object in the water is always vertically inverted, i.e. upside changes to downside and vice-versa.
• The water image is the mirror image in case if the mirror is placed horizontally below the object.

Given:-

When the unfolded cube is folded, the opposite faces of the cube will be:-

1. The face of dice with star will be opposite to the face with squares.

2. The face with plus will be opposite the face with hexagon.

3. The face with circle will be opposite to the face with a dot.

Now, checking options one by one:-

Option 1) Cube can be formed as no two opposite faces are present adjacent to each other.

Option 2) Cube can be formed as no two opposite faces are present adjacent to each other.

Option 3) Cube can be formed as no two opposite faces are present adjacent to each other.

Option 4) Cube CANNOT be formed as two opposite faces (i.e. squares and star are present adjacent to each other in the figure)

Hence, the correct answer is "Option 4".

The pattern followed here is:-

A letter is represented first by its row and next by its column.

1. 23 → B; 75 → U; 44 → E; 88 → N  (So, the letter cluster formed is BUEN)

2. 42 → G; 43 → A; 98 → S; 13 → H  (So, the word formed is GASH)

3) 23 → B; 95 → P; 13 → H; 58 → W  (So, the letter cluster formed is BPHW)

4. 11 → B; 78 → X; 20 → K; 87 → T  (So, the letter cluster formed is BXKT)

Hence, the correct answer is "(42, 43, 98, 13)".

Calculation:

We can write $0.17\overline {59} = 0.17595959 \ldots$

Similarly, we can write $0.30\overline {41} = 0.30414141 \ldots$

$\therefore \left( {0.17\overline {59} + 0.30\overline {41} } \right) = 0.17595959 \ldots + 0.30414141 \ldots$

$= 0.48010101 \ldots = 0.48\overline {01} ;$

Calculation:

Let the number be x

According to the question,

⇒ 2x + 16 = 6x – 4

⇒ 4x = 20

⇒ x = 5

∴ Number is 5

Given:

$\frac{{\sqrt {x + 5} + \sqrt x }}{{\sqrt {x + 5} - \sqrt x }} = 5$

Calculation:

Using Dividendo and Componendo

$\Rightarrow \frac{{\left( {\sqrt {x + 5;} + ;\sqrt x } \right) + \left( {\sqrt {x + 5} - ;\sqrt x } \right)}}{{\left( {\sqrt {x + 5} + ;\sqrt x } \right) - ;\left( {\sqrt {x + 5} - ;\sqrt x } \right)}}; = ;\frac{{5 + 1}}{{5 - 1;}}$

$\Rightarrow \frac{{2\sqrt {x + 5} }}{{2\sqrt x }} = \frac{6}{4}$

$\Rightarrow \frac{{\sqrt {x + 5} }}{{\sqrt x }} = \frac{3}{2}$

Squaring on both sides

$\Rightarrow \frac{{x + 5}}{x} = \frac{9}{4}$

⇒ 4x + 20 = 9x

⇒ 5x = 20

∴ x = 4

Given:

$\frac{{6\sqrt 3 + 7\sqrt 2 }}{{\sqrt {108} + \sqrt {50} }} = a + b\sqrt 6$

Calculation:

$\Rightarrow \frac{{6\sqrt 3 + 7\sqrt 2 }}{{6\sqrt 3 + 5\sqrt 2 }} \times \frac{{6\sqrt 3 - 5\sqrt 2 }}{{6\sqrt 3 - 5\sqrt 2 }} = a + b\sqrt 6$

$\Rightarrow \frac{{108 - 30\sqrt 6 + ;42\sqrt 6 - ;70}}{{108 - 50}} = a + b\sqrt 6$

$\Rightarrow \frac{{38 + 12\sqrt 6 }}{{58}} = a + b\sqrt 6$

$\Rightarrow \frac{{38}}{{58}} + \frac{{12\sqrt 6 }}{{58}} = a + b\sqrt 6$

$\Rightarrow \frac{{19}}{{29}} + \frac{{6\sqrt 6 }}{{29}} = a + b\sqrt 6$

On comparing, we get

a = 19/29, b = 6/29

$\therefore \frac{{6a}}{b} = \frac{{6 \times \frac{{19}}{{29}}}}{{\frac{6}{{29}}}} = 19$

Calculation:

We know, two angles whose sum is 90° are called complementary angles and two angles whose sum is 180° are called supplementary angles

Let the angle be x

According to the question,

⇒ (180° – x) = 5/2 (90° – x)

⇒ 360° – 2x = 450° – 5x

⇒ 3x = 90°

⇒ x = 30°

∴ The angle is 30°

Calculation:

 9² > 6² + 4²

⇒ 81 > 36 + 16

⇒ 81 > 52

We know, if a² > (b² + c²) where a, b, and c are the side of a triangle, then the triangle is the obtuse-angled triangle

∴ The given triangle is the obtuse-angled triangle

Given:

Puneet scored 10% marks in an exam and failed by 50 marks.

If he scored 40% marks, then he gets 25 marks more than passing marks.

Formula used:

Percentage = (value/total value) × 100

Calculation:

Let the total marks be x

According to the question,

⇒ (10x/100) + 50 = (40x/100) – 25

⇒ 3x/10 = 75

⇒ x = 250

Thus, Total marks = 250

Passing marks = {(40/100) × 250} – 25 

⇒ 100 – 25

⇒ 75

∴ The passing marks for the exam is 75.

Calculation:

Let the value of 10 rupees, 2 rupees, and 1 rupee coins are in the ratio of 15x : 8x : x

Ratio of number of coins = (15x/10) : (8x/2) : (x/1) = (3x/2) ∶ 4x ∶ x

According to the question

⇒ (3x/2) + 4x + x = 273

⇒ 13x/2 = 273

⇒ x = 42

Total value (in Rs) = 15x + 8x + x = 24x

= 24 × 42

= Rs. 1008

Calculation:

Vipin adds 3 litres of liquid A in 6 litres of liquid B

Percentage of B in first mixture = 6/9 × 100

Mohit adds 8 litres of liquid A in 15 litres of liquid B,

Percentage of B in second mixture = 15/23 × 100

∴ Ratio of the percentage of liquid B in the two mixtures = 6/9 × 100 : 15/23 × 100 = 46 ∶ 45

Calculation:

Let the first number be x.

So, 9 consecutive natural numbers are x, (x + 1), (x + 2), (x + 3)………..(x + 8)

Average = (sum of all the observations)/(total number of observations)

⇒ 41 = {x + (x + 1) + (x + 2) + (x + 3) + (x + 4) + (x + 5) + (x + 6) + (x + 7) + (x + 8)}/9

⇒ 41 × 9 = 9x + 36

⇒ 369 = 9x + 36

⇒ 9x = 333

⇒ x = 37

∴ largest number = (x + 8) = 37 + 8 = 45

TRICK :

In this type of question Average would be the median. So, 41 is the 5^th number which is the median of 9 consecutive natural numbers. So, 9 consecutive natural numbers are 37, 38, 39, 40, 41, 42, 43, 44, 45

∴ 41 + 4 = 45 is the largest among these numbers

Given:

Rate of interest = 12.5%

Simple interest = 5/4 of the principal

Formula used: 

SI = PRT/100

Calculation:

Let the principal be 4x

So, simple interest = 4x × (5/4) = 5x

Now, according to the question

⇒ 5x = (4x × 12.5 × Time)/100

⇒ Time = 10 years

∴ The required time period is 10 years

GIVEN:

CP of a table = 62% × SP

FORMULA USED:

Profit % = (profit/CP) × 100 

CALCULATION:

Let the SP of the table be Rs 100

CP of the table = 62% of 100 = 100 × (62/100) = Rs. 62

We know,

Profit = SP – CP = 100 – 62 = 38

We know,

∴ Profit % = (profit/CP) × 100 = (38/62) × 100 = 61.29%

Short Trick :

Let CP be 100x, SP be 117x and MP be 195x.

Now, 195x = 3510 

⇒ x = 18 

∴ CP = 1800 

Profit % = (3510 - 1800)/1800 × 100 = 95 %

Detailed Solutions :

Let the MP of a trouser be Rs. 3510

Now, the shopkeeper allows a discount of 40%,

SP of the trouser = 3510 × {(100 – 40)/100} = 3510 × (60/100) = Rs. 2106

Also, Shopkeeper gains 17% profit after discount

CP of the trouser = S.P × {100/(100 + profit%)} = 2106 × (100/117) = Rs. 1800

If no discount is allowed, then

Profit = MP – CP = 3510 – 1800 = 1710

We know,

∴ Profit % = Profit/CP × 100 = 1710/1800 × 100 = 95%

Calculation:

$\frac{{\sqrt[4]{{16}} + \sqrt[4]{{625}}}}{{\sqrt[4]{{256}}}}$

⇒ $\frac{{\sqrt[4]{{2 \times 2 \times 2 \times 2}} + \sqrt[4]{{5 \times 5 \times 5 \times 5}}}}{{\sqrt[4]{{4; \times 4 \times 4 \times 4}}}}$

⇒ $\frac{{2 + 5}}{4}$

⇒7/4

⇒1.75

Calculation:

Let N complete a wall in 100 days

M complete a wall = 100 × (160/100) = 160 days

So, the Ratio of their time (N ∶ M) = 100 ∶ 160 = 5 ∶ 8

We know, efficiency is inversely proportional to the time

Thus, the Ratio of their efficiency (N ∶ M) = 8 ∶ 5

Time is taken by them to complete the wall together = 24 days

⇒ Total work done by them = (8 + 5) × 24 = 13 × 24 = 312

∴ Time is taken by N alone to complete the wall = 312/8

= 39 days

Calculation:

Time = distance/speed

⇒ Time = 84/42 = 2 hr

= 2 × 60

= 120 minutes

As he stops for 8 minutes at end of every 11 km so, he stops 7 times to cover 84 km (∵ 11 × 7 = 77)

Total time taken by him = 120 + (8 × 7)

=120 + 56

= 176 minutes

∴ Total time taken by him is 176 minutes

Calculation:

According to the graph,

teenagers of age 13 spend the least number of hours watching TV

Calculation:

Time spent per day watching TV by 14 year olds = 1.5 hr

Time spent per day watching TV by 18-year-olds = 3.5 hr

∴ Required ratio = 1.5 ∶ 3.5 = 3 ∶ 7

Calculation:

Time spent per day watching TV by 15-year-olds = 2 hr

Time spent per day watching TV by 17-year-olds = 2.5 hr

Required % = {(2.5 – 2)/2} × 100 = (0.5/2) × 100 = 25 %

∴ The number of hours per day spent in watching TV is 25% more by 17-year-olds as compared to 15-year-olds

Calculation:

Hours per day spent in watching TV by 16-year-olds = 3 hr

Hours per week spent in watching TV by 16-year-olds

= 3 × 7

= 21 hr

Calculation:

We know,

Area of an equilateral triangle = (√3/4) × Side²

⇒ (√3/4) × Side² = 9√3

⇒ Side² = 36

∴ Side = 6 cm

Formula:

Area of the circle = π × Radius²

Calculation:

⇒ π × Radius² = 38.5

⇒ (22/7) × Radius² = 38.5

⇒ Radius² = 12.25

⇒ Radius = 3.5 cm

Diameter of the circle = 2 × Radius

= 2 × 3.5

= 7 cm

∴ Diameter of the circle is 7 cm.

Given:

Diameter of hemisphere = 7 cm

Radius of hemisphere = Diameter/2 = 7/2

We know,

Total surface area of hemisphere = 3 × π × Radius²

= 3 × (22/7) × (7/2) × (7/2)

= 115.5 cm²

Given:

∠Z = 30° and ∠Y = 90°

Calculation:

We know, by angle sum property,

⇒ ∠X + ∠Y + ∠Z = 180°

⇒ ∠X + 90° + 30° = 180°

⇒ ∠X = 60°

Now,

∴ cos X – (1/√3) = cos 60° – (1/√3) = (1/2) – (1/√3)

= (√3 – 2)/2√3

Given:

∠B = 90°

Sin A = 15/17

Calculation:

sinA = 15/17 = BC/AC

AB = √{AC² - BC²} = √{17² - 15²} = √{289 - 225} = √64 = 8 unit

Now,

AB = 0.8 

i.e. 8 unit = 0.8

1 unit = 0.8/8 = 0.1

So, BC = 15 unit = 15 × 0.1 = 1.5

∴ The correct answer is option (1).

• Participatory notes, also known as P-notes are associated with Foreign Institutional Investors.
• Participatory notes are basically devices used outside India for making investments in the Indian stock market.

The correct answer is 1965.

Key Points 

Food Corporation of India:

• The Food Corporation of India is an organisation under the government of India.
• It was set up under the Food Corporation act in 1964.
• It was thus established in the year 1965.
• The key objectives of the Food Corporation of India are:
• Ensuring that farmers are not forced to sell their produce below MSP by providing effective price support operations.
• Setting up purchase centres to buy produce from the farmers.
• Distribution of food grains throughout the country for the public distribution system.
• Maintaining a satisfactory level of operational and buffer stocks of foodgrains to ensure National Food Security.
• To intervene in the market for price stabilization.
• The headquarters of the food corporation of India is in New Delhi.
• The Ministry of Consumer Affairs, Food, and Public Distribution is the parent organisation of the food corporation of India.
• Thus, the Food Corporation of India was established in the year 1965.

LOGO

• Monsoon is defined as the changing direction of winds accompanied by constant changes in the precipitation of the atmosphere causing the formation of a season reversing wind.
• A storm is an example of a monsoon wind that is responsible for heavy flood and other damages.

The correct answer is Lucknow.

Key Points The Ganga System

• The Ganga is the most important river in India both from the point of view of its basin and cultural significance.
• It rises in the Gangotri glacier near Gaumukh (3,900 m) in the Uttarkashi district of Uttarakhand. Here, it is known as the Bhagirathi.
• It cuts through the Central and the Lesser Himalayas in narrow gorges.
• At Devprayag, the Bhagirathi meets the Alaknanda; hereafter, it is known as the Ganga.
• The Alaknanda has its source in the Satopanth glacier above Badrinath.
• The Alaknanda consists of the Dhauli and the Vishnu Ganga which meet at Joshimath or Vishnu Prayag.
• The other tributaries of Alaknanda such as the Pindar join it at Karna Prayag while Mandakini or Kali Ganga meets it at Rudra Prayag.
• The Ganga enters the plains at Haridwar. From here, it flows first to the south, then to the southeast and east before splitting into two distributaries, namely the Bhagirathi and the Padma.
• The river has a length of 2,525 km.
• It is shared by Uttarakhand (110 km) and Uttar Pradesh (1,450 km), Bihar (445 km), and West Bengal (520 km).
• The Son is its major right-bank tributary.
• The important left-bank tributaries are the Ramganga, the Gomati, the Ghaghara, the Gandak, the Kosi, and the Mahananda.
• The river finally discharges itself into the Bay of Bengal near Sagar Island.

• Kalibangan is a town located in Tehsil Pilibangan, which is 205 km from Bikaner.
• The walls of the fortification along with other constructions are made up of mud bricks which makes the town look unique.

The correct answer is  Comrade

Key Points

• Madan Mohan Malviya:-
• An Indian scholar, educational reformer, and politician notable for his role in the Indian independence movement.
• Pandit Madan Mohan Malaviya was the three times president of the Indian National Congress and the founder of Akhil Bharatiya Hindu Mahasabha.
• Also played a major role in the formation of Banaras Hindu University.
• He was respectfully addressed as Pandit Madan Mohan Malaviya and also addressed as Mahamana.
• Comrade is not related to Madan Mohan Malaviya who had been served as the president of Indian National Congress for four times.
• Madan Mohan Malviya started to publish "Leader" in 1909.
• He started his career as the editor of "Hindustan".

Additional Information

• Comrade:-
• It was published and edited by Maulana Mohammad Ali between 1911 and 1914.

The correct answer is Rishabhdeva.

Key Points

• Rishabhdeva is considered the first real founder of Jainism.
• He is the first Tirthankara in Jainism and is also said to have lived a million years ago.
• Arishtanemi was the twenty-second Tirthankara in Jainism.
• Parshvanath was the twenty-third Tirthankaras of Jainism.
• Mahavir Jain was the twenty-fourth Tirthankaras of Jainism.
• Ajitanath was the second Tirthankara of Jainism.

Additional Information

• According to Jain Tradition, There were 24 Tirthankaras, The first being Rishabhdeva /Adinatha and the last being Mahavira.
• The name of two Jain Tirthankaras - Rishabhdeva & Aristhanemi are found in the Rig Veda.

24 Tirthankaras are:

• The 7^th International Ground Water Conference was hosted by India in New Delhi from Dec 11-13, 2017.
• “Ground Water Vision 2030- Water Security, challenges and Climate Change Adaptation” was the theme of the conference.

• Los Perros, directed by Marcela Said was awarded with the ‘best film’ in the International film competition category at the 23^rd Kolkata International Film Festival (KIFF) that was held in November 2017.
• Los Perros also won ‘Platino Award’ for Best Actor and ‘Naguib Manfouz Prize’ for Best Screenplay.

The correct answer is 1956.

Key Points

• South Asia contains the nation of Pakistan.
• With about 243 million inhabitants, it is the fifth most populous nation in the world.
• It is home to the second-largest Muslim population in the world, just after Indonesia.
• Up to its independence in 1947, all of modern-day Pakistan was still a part of the British Indian Empire as of 1893.
• Pakistan transitioned to a federal republic in 1956.
• The federal democratic republic with a semi-presidential system is another name for **Pakistan's government.**​

Additional Information

• Shehbaz Sharif was sworn in as Pakistan's 23^rd prime minister on April 11^th, 2022.
• Sharif was sworn in by Senate President Sadiq Sanjarani.

The correct answer is Fluorine

Key points

• It is the lightest halogen and extremely reactive gas.
• It can cause teeth decay, osteoporosis, and harm to kidneys, bones, nerves, and muscles.
• The electronegativity of fluorine is 3.98.

Additional Information

• Chlorine
• Gaseous chlorine is poisonous and classified as a pulmonary irritant.
• It causes health issues related to the respiratory tract.
• It is also a halogen gas placed 17^th group.
• Sodium
• Sodium is a member of the alkali metal family with lithium and potassium.
• Sodium has a strong metallic luster and in color is very analogous to silver.
• It is soft at common temperatures that it may be formed into leaves by the pressure of the fingers.
• Sodium compounds soon tarnish on exposure to the air, though less rapidly than potassium.

The correct answer is The concept of quantization of energy.

Explanation:

• Bohr’s model was presented by Niels Bohr and Ernest Rutherford in 1913 and is related to the concept of quantization of energy.
• According to the concept the atom is defined as a system consisting of a dense nucleus surrounded by revolving electrons.
• The Bohr model of the atom was put forth by Neil Bohr in 1915.
• According to this idea, negatively charged electrons in an atom move in defined circular orbits or shells that encircle the positively charged nucleus.
• • The energy of each orbit or shell is known.
• • The energy levels are denoted by the quantum number =1,2,3, etc. ), which is an integer. The nucleus side, which has the lowest energy level, is where this quantum number range starts.
• • The electrons of an atom can move from a lower energy level to a higher energy level by receiving the required energy, and from a higher energy level to a lower energy level by losing energy.
• Ernest Rutherford, a British scientist, conducted an experiment, and based on the findings, he suggested the atomic structure of the elements and developed the Rutherford Atomic Model (1911). The Thomson atomic model was developed in 1900, while the Bohr model of the atom was first proposed in 1915. As a result, it is the wrong choice.

The correct answer is All I, II, and III.

Key Points

• Union List, also known as List-I, is a list of 100 items that were given in the 7^th schedule in the Indian Constitution.
• Defense, Banking, and Inter-State Trade and Commerce all come under this list.
• SEVENTH SCHEDULE (Article 246) List I—Union List
• 1. Defense of India and every part thereof including preparation for defense and all such acts as may be conducive in times of war to its prosecution and after its termination to effective demobilization.
• 42. Inter-State trade and commerce.
• 43. Incorporation, regulation, and winding up of trading corporations, including banking, insurance, and financial corporations, but not including co-operative societies.
• 45. Banking

Important Points

• State List: States have exclusive powers on this list to deal with.
• Public order, Railways Police, Public health and sanitation, Prisons, reformatories, Borstal institutions, and other institutions of a like nature, etc
• Concurrent List: Both Union and States can make laws on the subjects in this list.
• Bankruptcy and insolvency, Trust and Trustees, Prevention of cruelty to animals, etc.