SSC CHSL Previous Paper 46 (Held On: 23 March 2018 Shift 3) (Previous Year Paper)

Correct option - 4

Clearly, a sentence does not end with a preposition or transitive verb(verb that requires object). Hence, option 4 is the correct answer.

Correct option - 1

Since, conjunction but is followed by "now", it means the main clause describes action related to past. Hence, replace has with had. Thus, option 1 is the correct answer.

The correct answer is "elaborate"

Key Points

• Let's find out the meaning of the following words:-
• labyrinthine - a network like a labyrinth; irregular and twisting. or a complicated irregular network of passages or paths in which it is difficult to find one's way; a maze.
• facile - moving, acting, working, etc. with ease, sometimes with superficiality.
• elaborate - involving many carefully arranged parts or details; detailed and complicated in design and planning.
• prodigious - remarkably or impressively great in extent, size, or degree.

Clearly, option 3 is the appropriate substitute word.

Correct option - 4

Let's find out the meaning of the following words:-

peccant - having committed a fault or sin. 

culpable - deserving blame. 

vicious - deliberately cruel or violent. 

esteem - respect and admiration.

Hence, option 4 gives the appropriate substitute.

The correct answer is 'fundamental'. 

Key Points 

• Clearly, option 1 is eliminated because the article 'a' is given.
• Let's find out the meaning of the following words:-
• Fundamental - forming a necessary base or core; of central importance; foundational. (एक आवश्यक आधार बनाना; काफी महत्व की; आधारभूत)
• Primitive - at a very simple stage of development. (विकास के बहुत ही सरल चरण में)
• Radical -   extreme, that which goes beyond moderation or even to excess in opinion, belief, action, etc (जो राय, विश्वास, क्रिया आदि में संयम से परे हो)
• Here, the context explains that basic education needs to include reading, writing, etc.

So, option 2 gives an appropriate meaning to the sentence.

Correct option - 1

Let's find out the meaning of the following words:-

fluctuate -rise and fall irregularly in number or amount.

wave -move to and fro with a swaying motion while remaining fixed to one point. 

flutter - a bird or other winged creature fly unsteadily or hover by flapping the wings quickly and lightly. 

vibrate - move continuously and rapidly to and fro; quiver with a quality or emotion. 

Here, the context explains that the price of gold will rise and fall irregularly. Hence, option 1 is the correct answer.

Correct option - 4

Here, active voice is given, so we need to change it into passive voice. Since, simple future tense is used. Thus, following pattern will be used :- 

Obj + will/shall + be + V3 + by + Sub.

Hence, option 4 is the correct answer.

Correct option - 3

Here, an interest or liking is shown in the sentence. When such liking, habit, etc. is described, then simple past tense is used. So, option 3 is the correct answer.

The correct answer is: In

Key Points

• Let's look at the uses of the given words.
• In is used to show a position inside a particular area or object.
• Example - Unfortunately, this is a major ' grey area ' in democracy.
• Into is used toward or in the direction of something.
• Example - The nations entered into an alliance.
• Inside means the inner part or surface of something.
• Example - The door was locked from the inside.
• Inner means towards or close to the center of a place.
• Example - Leading off the main hall is a series of small inner rooms.
• Democracy is a system in which the government of a country is elected by the people.
• So, as per the meaning of the given words, "in" should be used in the given sentence.

Therefore, the correct answer is option 1.

Complete passage: (1) In democracies, citizens have command (2)_________who they want to be represented by as well as the competence to define issues worthy of representation. Outside the domain of often (3)________party politics lies an entire terrain of collective action (4)________which citizens press their collective will upon those (5)________rule.

The correct answer is: over

Key Points 

• Let's look at the uses of the given prepositions.
• On is used to indicate touching and being supported by the top surface of something or moving to a position that is supported by something.
• Example - The book is lying on the table.
• About is used for stating who or what you are discussing, considering, describing, forgetting, etc.
• Example - I'm very worried about my brother.
• Over is used as a function word to indicate the possession of authority, power, or jurisdiction in regard to something or persons.
• Example - Colonel Sailing has command over the Guards Regiment.
• With means in the same place as someone or something or 'accompanying'.
• Example - I don’t like tea with milk.
• The term "command over" means control over someone or something and responsibility for him, her, or it.
• The implied meaning of the sentence is: Citizens have control over who they wish to represent them and the authority to determine what matters need representation.
• So, as per the meaning of the given words, "over" should be used in the given sentence.

Therefore, the correct answer is option 3.

Complete passage: (1) In democracies, citizens have command (2) over who they want to be represented by as well as the competence to define issues worthy of representation. Outside the domain of often (3)________party politics lies an entire terrain of collective action (4)________which citizens press their collective will upon those (5)________rule.

The correct answer is: Obnoxious 

Key Points

• Let's look at the uses of the given words.
• Smelly means having a bad smell. (दुगंध देने वाला; बदबूदार)
• Obnoxious means extremely unpleasant, especially in a way that offends people. (बहुत बुरा लगने वाला; घृणित, घिनौना)
• Odourful means having or emitting a characteristic smell or odour. (एक विशिष्ट गंध या गंध होना या निकलना।)
• Rancid means an unpleasant smell or taste usually from chemical change or decomposition.(आमतौर पर रासायनिक परिवर्तन या अपघटन से एक अप्रिय गंध या स्वाद)
• The implied meaning of the sentence is: There is an enormous landscape of collaborative activity outside the realm of the frequently annoying party politics.
• So, as per the meaning of the given words, "obnoxious" should be used in the given sentence.

Therefore, the correct answer is option 2.

Complete passage: (1) In democracies, citizens have command (2) over who they want to be represented by as well as the competence to define issues worthy of representation. Outside the domain of often (3) obnoxious party politics lies an entire terrain of collective action (4)________which citizens press their collective will upon those (5)________rule.

The correct answer is: through

Key Points

• Let's look at the uses of the given words.
• Through is used as a function word to indicate movement into at one side or point and out at another and especially the opposite side.
• To is used for approaching or reaching a particular condition.
• Into is used toward or in the direction of something.
• For is used to talk about a purpose or a reason for something.
• Here, an approach is shown since, outside politics, there is a collective action taken by the citizens to decide whom they are going to let rule.
• So, as per the use of the given words, "through" should be used in the given sentence.

Therefore, the correct answer is option 1.

Complete passage: (1) In democracies, citizens have command (2) over who they want to be represented by as well as the competence to define issues worthy of representation. Outside the domain of often (3) obnoxious party politics lies an entire terrain of collective action (4) through which citizens press their collective will upon those (5)________rule.

The correct answer is: who

Key Points

• Let's look at the uses of the given Wh-words.
• Whom is used as the object of a verb or preposition. It is an objective pronoun.
• Which is used to refer to a choice between two or more possible answers or alternatives.
• Whosoever means any person, no matter who.
• Who is used for saying exactly which person or what kind of person you are talking about. It is a subjective pronoun.
• Subjective pronouns tell us who or what the sentence is about.
• Objective pronouns receive the action in the sentence.
• Here, the representatives are people, and it is a subject pronoun, which means it performs the action.
• So, as per the use of the given words, "who" should be used in the given sentence.

Therefore, the correct answer is option 4.

Complete passage: (1) In democracies, citizens have command (2) over who they want to be represented by as well as the competence to define issues worthy of representation. Outside the domain of often (3) obnoxious party politics lies an entire terrain of collective action (4) through which citizens press their collective will upon those (5) who rule.

The correct answer is marzipan

Key Points

• Here, the word "marzipan" is correctly spelled.
• Marzipan: a sweet yellow or white paste of ground almonds, sugar, and egg whites, used to coat cakes or to make confectionery.
• The correct spelling of other words is as follows:-
• Assyrian: an inhabitant of ancient Assyria.
• Apostate: a person who renounces a religious or political belief or principle
• Cucumber: a long, green-skinned fruit with watery flesh, usually eaten raw in salads or pickled.

The correct answer is 'meaningless talk or activity, typically designed to trick someone'.

Key Points

• Hocus pocus means tricks used to deceive or words used to hide what is happening. (धोखा देने के लिए इस्तेमाल की जाने वाली तरकीबें या जो हो रहा है उसे छिपाने के लिए इस्तेमाल किए गए शब्द)
• ​For example- It was really a lot of hocus-pocus.

Therefore, the correct answer is- 'meaningless talk or activity, typically designed to trick someone'.

Additional Information

• walking in a zig-zag manner, especially under the influence of alcohol(टेढ़े-मेढ़े तरीके से चलना, खासकर शराब के प्रभाव में)
• rich people but who are shallow and greedy(अमीर लोग लेकिन जो सतही और लालची हैं)
• doing a job haphazardly(बेतरतीब ढंग से काम करना)

The correct answer is 'no improvement​'.

Key Points

• ​The given sentence is error-free.
• The subject-verb agreement is correct in the given sentence as per grammar and context.
• The subject of the given sentence is 'your character' which is a singular subject.
• The singular subject requires a singular verb i.e. 'depends'.
• The preposition 'on' is used used to show that somebody belongs to a group or an organization.
• ***​"*to be on the committee/staff/jury/panel".
• ​The bracketed part is also correct as it contains the correct form of the noun 'upbringing'.

Hence, the correct option is Option 4.

The correct answer is 'Neoplasm'.

Key Points

• Neoplasm: A neoplasm is any abnormal growth of cells, often referred to as a tumour. It can be benign (not cancerous) or malignant (cancerous). (नवोत्पाद)
• Example: A common type of neoplasm that many people are familiar with is skin cancer, which can present as an unusual mole or growth on the skin.
• Hence, the correct spelling is Neoplasm.

Therefore, the correct answer is “Option 4”.

Additional Information

• Iminent (Incorrect Spelling): The corrected spelling is "Imminent", meaning about to happen. (आसन्न)
• Mouerning (Incorrect Spelling): The corrected spelling is "Mourning", which refers to the expression of deep sorrow for someone's death. (शोक)
• Laticed (Incorrect Spelling): A possible intended corrected spelling could be "Latticed", which refers to a structure made of strips of wood or metal crossed and fastened together with square or diamond-shaped spaces left between, used typically as a screen or as support for climbing plants. (जालीदार)

Correct option - 3

Firstly, a sentence does not end with an article. So, option 4 is eliminated. The starter ends with "Indian" that is a third person singular noun. Hence, verb "do" does not come with it. So, option 1 is eliminated. And, both 'Indian' and 'independence' are singular noun, they should be connected by something. Thus, option 2 is incorrect.

Hence, option 3 is the correct answer.

The correct answer is 'to prepare for sleep'

Key Points

• The meaning of the given phrase 'to hit the sack' is 'go to bed.'
• Let's see an example of the given phrase-
• I’ve got a busy day tomorrow, so I think I’ll hit the sack.

Correct option - 2

Let's find out the meaning of following word 'blabber' :- talk foolishly, indiscreetly, or excessively.

Now, find the meaning of - 

sophic -  relating to, or full of wisdom; intellectual; sapient. 

Hence, option 2 i.e. nonsense is the most appropriate synonym for the given word.

Correct option - 1

Let's find out the meaning of following word 'to admonish' :-reprimand firmly. 

Now, find the meaning of following words :-

reprimand - a formal expression of disapproval.

rave - address someone in an angry, uncontrolled way.

panegyrize - speak or write in praise of; eulogize.

Hence, option 1 i.e. to reprimand is the most appropriate synonym for the given word.

Correct option - 2

Let's find out the meaning of following word 'divulgence' :- to make known something, such as a confidence or secret; The action of revealing/disclosing private or sensitive information; revelation. 

Now, find the meaning of -

testimony - evidence or proof of something.

repudiation - denial of the truth or validity of something; rejection; refusal to fulfil or discharge an agreement, obligation, or debt.

assent - the expression of approval or agreement.

Hence, option 2 i.e. repudiation is the most appropriate antonym for the given word.

Correct option - 1

Let's find out the meaning of following word "stratagem" :- a plan or scheme, especially one used to outwit an opponent or achieve an end; cunning.

Now, find the meaning of following words :- 

frankness - the quality of being open, honest, and direct in speech or writing.

gimmick - a trick or device intended to attract attention, publicity, or trade; ruse; ploy.

Hence, option 1 i.e. 'franknss' is the most appropriate antonym for the given word.

Correct option - 4

 Key Points 

• The above sentence is free from errors.
• I don't think I shall get through all this work this afternoon.
• Here "I shall get through" is in Future tense because here I am thinking now that by today afternoon I will not be able to complete this work that is in future.
• So, the above sentence is correct.

Additional Information

• Get through means to pass a difficult or testing experience or period.
• For Example - He just did what was needed to get through.

Correct option - 4

Here, direct speech is given, so we change it into indirect speech. The reporting verb "said" remains same. So, option 1 is incorrect. Now, a universal truth is mentioned in the sentence, it means it remains same in past. present and future time. So, the tense used is always simple present tense. Hence, option 4 is the correct answer.

The pattern followed here is:-

Turtles belong to the reptile category

1. Snakes belong to the reptile category

2. Frog belong to the amphibian category

3. Crow belong to family of birds

Similarly,

4. Elephants belong to the reptile category

Hence, the correct answer is "Elephant : Mammal".

The Logic followed here is:-

(First number × 3) = Second number

In 16 : 48

16 × 3 = 48

Similarly,

In 25 : 75

25 × 3 = 75

Hence, the correct answer is "25 : 75 ".

The pattern followed here is:-

APR is related to BQS as

Similarly,

ETV is related to FUW as

Hence, the correct answer is "FUW".

The pattern followed here is:-

1) Pen - Ink → Pen consists of ink

2) Pen - Writer → Writer using a pen.

3) Book - Pages → Book consists of pages

4) Word - Letter → Word consists of letter

As can be seen clearly from the above that the group i.e. Pen - Writer is the odd one out as it doesn't follow the same pattern.

Hence, the correct answer is "Pen - Writer".

The Logic followed here is:-

(First number × 2) = Second number

1. In 7 - 14 

(7 × 2) = 14

2. In 11 - 22

(11 × 2) = 22

3. In 5 - 10

(5 × 2) = 10

4. In 3 - 8

(3 × 2) = 6 not 8

As we can see clearly, 3 - 8 is an odd pair as it does not follows the logic.

Hence, the correct answer is "3 - 8".

The pattern followed here is:-

As can be seen that LVZ doesn't follow the same pattern as the other three.

Hence, the correct answer is "LVZ".

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

3. Conflict
4. Congratulate
5. Conservative
6. Cooker
7. Cool

As can be seen the word that comes at second position is Congratulate.

Hence, the correct answer is "Congratulate".

The pattern followed here is:-

Hence, the correct answer is "86".

The table shows the place value of the alphabet.

The pattern followed here is:

Hence, the correct answer is "A".

Distance between final position and Hospital = (49 - 34) m → 15 m

Hence, answer is ’15 m’.

GAME: GRAMOPHONE → Word can be formed.

NORM: GRAMOPHONE → Word can be formed.

RAM: GRAMOPHONE → Word can be formed.

MOVE: GRAMOPHONE → Cannot be formed as there is no ‘V’ in it.

Hence, the correct answer is "Move".

According to given information:-

As we can see clearly 'is' is coded as muk.

Hence, the correct answer is "muk".

The table shows the place value of the alphabet.

The pattern followed here is:

Hence, the correct answer is ‘SFR’.

The pattern/logic followed here is:

Hence, the correct answer is ‘145’.

The Logic followed here is:-

First number + 4 → Second number

Second number + 4 → Third number

1. In (57, 61, 65)

57 + 4 = 61

61 + 4 = 65

2. In (92, 96, 100)

92 + 4 = 96

96 + 4 = 100

3. In (63, 67, 71)

63 + 4 = 67

67 + 4 = 71

4. In (64, 68, 70)

64 + 4 = 68

68 + 4 = 72 not 70

As can be seen clearly from the above that the group i.e. (64, 68, 70) is the odd one out as it doesn't follow the logic.

Hence, the correct answer is "(64, 68, 70)".

Given equation: 20 + 6 x 5 ÷ 20 - 14 = ?

On replacing the symbol:

20 × 6 ÷ 5 - 20 + 14 = ?

→ 20 × 1.2 - 20 + 14

→ 24 - 20 + 14

→ 38 - 20

→ 18

Hence, answer is ‘18’.

Given equation: 19 - 16 + 5 ÷ 10 x 2 = 28

1. After interchanging ‘x and -' we get:

19 x 16 + 5 ÷ 10 - 2 = 28

LHS = 19 x 16 + 5 ÷ 10 - 2

→ 19 x 16 + 0.5 - 2

→ 304 + 0.5 - 2 ≠ RHS

2) After interchanging ‘÷ and -' we get:

19 ÷ 16 + 5 - 10 x 2 = 28

LHS = 19 ÷ 16 + 5 - 10 x 2 

→ 1.1875 + 5 - 10 x 2 ≠ RHS

3)After interchanging ‘÷ and ×’ we get:

19 - 16 + 5 × 10 ÷ 2 = 28

L.H.S : 19 - 16 + 5 × 10 ÷ 2

→ 19 - 16 + 5 × 5

→ 3 + 25

→ 28 = R.H.S

4) After interchanging ‘- and +' we get:

19 + 16 - 5 ÷ 10 x 2 = 28

LHS = 19 + 16 - 5 ÷ 10 x 2

→ 19 + 16 - 0.5 x 2

→ 19 + 16 - 1 ≠ RHS

Hence, the correct answer is ‘÷ and ×’.

The Logic followed here is:-

(First number + Second number) × 10 = Result

Given:-

In 1&7 = 80

(1 + 7) × 10 = 80

In 4&5 = 90

(4 + 5) × 10 = 90

In 6&8 = 140

(6 + 8) × 10 = 140

Similarly,

In 5&5

(5 + 5) × 10 = 100

Hence, the correct answer is "100".

The pattern followed here is:-

There is a combination of 4 'XY' in which the letters starting from second position and in increasing order are small letters in each successive term

Table showing the pattern:-

Hence, the correct answer is "XYXYXYxY".

Hence, answer is ’90 miles East’.

Conclusion I: All windows are openings → False (As all doors are windows and no openings are windows)

Conclusion II: No openings are doors → True (As all doors are windows and no openings are windows)

Hence, only conclusion II follows.

According to the given information:-

Rectangle that represents Reporters are → F, H, A, B, C and D

Circle that represents Dancers are → C, D and E

Triangle that represents Playwrights are → I, J, A, B and C

Square that represents Boxers are → G, H, A and J

We can see that the shaded part in the diagram as well as the common letter of the figure in triangle and square i.e. AJ denote the set of letter who are Boxers as well as Playwrights.

Hence, the correct answer is "AJ".

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 4".

From the figure we can conclude:

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

2. The side with cross will be opposite the side with circle.

3. The side with circle and square will be opposite to the side with five small circles.

Hence, the correct answer is "Option 1".

The pattern followed here is:-

A letter is represented first by its row number of the matrix then by its column number of the matrix.

1. In 44, 34, 68, 10

44 → H; 34 → I; 68 → N; 10 → D (So, the word formed is 'HIND')

2. In 11, 89, 13, 77

11 → D; 89 → Y; 13 → F; 77 → P (So, the Letter formed is 'DYFP')

3. In 20, 88, 11, 86

20 → F; 88 → X; 11 → D; 86 → V (So, the Letter formed is 'FXDV')

4. In 42, 67, 12, 89

42 → D; 67 → T; 12 → A; 89 → Y (So, the Letter formed is 'DTAY')

Hence, the correct answer is "44,34,68,10".

Calculation:

Let the number be ‘x’

⇒ (66% of x) – (44% of x) = 275

⇒ 0.66x – 0.44x = 275

⇒ 0.22x = 275

⇒ x = 275/0.22 = 1250

∴ 64% of the number = 0.64 × 1250 = 800

Laws of Indices:

1. a^m × aⁿ = a^{{m + n}}
2. a^m ÷ aⁿ = a^{{m - n}}
3. (a^m )ⁿ = a^mn
4. (a)^-m = 1/a^m
5. (a)^m/n = ⁿ√a^m
6. (a)⁰ = 1

Calculation:

(5^1/4 – 1)(5^3/4 + 5^1/2 + 5^1/4 + 1)

⇒ (5^1/4 × 5^3/4) + (5^1/4 × 5^1/2) + (5^1/4 × 5^1/4) + 5^1/4 – 5^3/4 – 5^1/2 – 5^1/4– 1

⇒ 5 + 5^3/4 + 5^1/2 + 5^1/4 – 5^3/4 – 5^1/2 – 5^1/4– 1

⇒ 5 – 1

⇒ 4

Given:

 √(2 + 7x) = √(3x + 4)

Calculation:

Squaring both sides,

⇒ 2 + 7x = 3x + 4

⇒ 7x – 3x = 4 – 2

⇒ 4x = 2

⇒ x = 2/4 = 0.5

Calculation:

Let the consecutive even numbers be ‘x’ and ‘(x + 2)’

Product of numbers = 168

⇒ x(x + 2) = 168

⇒ x² + 2x – 168 = 0

⇒ x² + 14x – 12x – 168 = 0

⇒ x(x + 14) – 12(x + 14) = 0

⇒ (x + 14)(x – 12) = 0

⇒ x = – 14, 12 (Neglecting negative values)

⇒ x + 2 = 12 + 2 = 14

∴ Sum of the numbers = 12 + 14 = 26

Shortcut TrickWe will solve it using unit digits.

The unit digit of the number is 168.

The unit digits of two consecutive even numbers whose product of the digits is 8 = 2 × 4

Hence, the unit digits of the unknown numbers = 2 and 4

The sum of unit digits = 2 + 4 = 6 

The unit digit of our answer must be equal to 6.

∴ The sum is 26.

Calculation:

The given triangle can be drawn as:

Considering similar triangles ∆ABC and ∆ADE,

∵ Their corresponding sides are in proportion,

⇒ AB/AD = BC/DE

Given, AD = (1/6)AB and BC = 18 cm

⇒ AB/(1/6)AB = 18/DE

⇒ 6 = 18/DE

∴ DE = 18/6 = 3 cm

Calculation:

∵ Triangles ∆ABC and ∆DEF are similar and equiangular triangles and their corresponding sides are in proportion,

⇒ AB/DE = BC/EF

Similarly, ∆ABL and ∆DEM are also similar and equiangular triangles and their corresponding sides are in proportion,

⇒ AB/DE = AL/DM

Equating the above relations, we get,

⇒ BC/EF = AL/DM

GIVEN:

Rate of Depreciation = 15%

Present value = Rs. 433500

FORMULA USED:

Value n years ago = P/[(1 – R/100)n]

CALCULATION:

If the present value of an article is Rs. P and it depreciates at a rate of R% per annum, then,

Its value n years ago = P/[(1 – R/100)ⁿ]

Given, P = Rs. 433500, R = 15%, n = 2 years

∴ Its value 2 years ago = 433500/[(1 – 15/100)²] = 433500/0.7225 = Rs. 600000

Alternate MethodFormula used: a + b - ab/100Equivalent rate of depreciation for two years = 15 + 15 - (15 × 15)/100

⇒ 30 - 2.25 = 27.75%

Let the current value is 100.

The value before 2 years = 100 - 27.75 = 72.25

72.25 units = 433500

1 unit = 6000

100 units = 600000

∴ The current value is 600000.

Given:

 A ∶ B ∶ C = 2 ∶ 3 ∶ 5

Calculation:

Multiplying by 2,

⇒ A ∶ B ∶ C = 4 ∶ 6 ∶ 10

Also, C ∶ D = 2 ∶ 5

Multiplying by 5,

⇒ C ∶ D = 10 ∶ 25

∴ A ∶ D = 4 ∶ 25

Given: 

In a mixture of 35 litres, the ratio of water and acid is 6: 1. If 5 litres of acid is added to the mixture, the Ratio of water and acid in the initial mixture = 6 ∶ 1

Calculation:

Sum of ratios = 6 + 1 = 7

Quantity of acid in 35 litres of initial mixture = (1/7) × 35 = 5 litres

When 5 litres of acid is added to 35 litres of the initial mixture,

Quantity of new mixture = 35 + 5 = 40 litres

Quantity of acid in new mixture = 5 + 5 = 10 litres

Quantity of water in new mixture = 40 – 10 = 30 litres

∴ Water-acid ratio in new mixture = 30 ∶ 10 = 3 ∶ 1

Calculation:

Total savings in five days = 5 × 160 = Rs. 800

Total savings in first 4 days = 155 + 170 + 134 + 168 = Rs. 627

∴ Saving of 5^th day = 800 – 627 = Rs. 173

Calculation:

When the interest is compounded annually on a sum of Rs. P at R% per annum, then

Amount after n years = P[(1 + R/100)ⁿ]

Hence, when P = Rs. 6000, R = 8%

∴ Amount after 2 years = 6000 × [(1 + 8/100)²] = 6000 × 1.1664 = Rs. 6998.4

Calculation:

Cost price = Rs. 122

Profit % = 56%

∵ Selling price = Cost price + Profit

∴ Selling price of article = 122 + 56% of 122 = 122 + 68.32 = Rs. 190.32

Calculation:

Let the Marked price be Rs. ‘x’

Selling price = (4/5)x

If there is a loss of 4%, then, Cost price – loss = Selling price

⇒ CP – 4% of CP = (4/5)x

⇒ 96% of CP = (4/5)x

⇒ (24/25) CP = (4/5)x

⇒ CP = (5/6)x

∴ Ratio of Marked price to Cost price = x ∶ (5/6)x = 6 ∶ 5

Calculation:

Let √[19 + 4√21] = √x + √y

Squaring both sides, we get,

⇒ 19 + 4√21 = x + y + 2√xy

⇒ 19 + 2√(4 × 21) = x + y + 2√xy

Hence on comparing,

⇒ x + y = 19      ----(1)

⇒ xy = 21 × 4 = 84      ----(2)

Substituting (1) in (2), we get,

⇒ x(19 – x) = 84

⇒ x² – 19x + 84 = 0

⇒ x² – 7x – 12x + 84 = 0

⇒ x(x – 7) – 12(x – 7) = 0

⇒ (x – 7)(x – 12) = 0

⇒ x = 7, 12

⇒ y = 12, 7

∴ Positive square root of [19 + 4√21] = √7 + √12 = √7 + 2√3

Alternate Solution:

(19 + 4√21) = {12 + 7 + 2√(4 × 21)}

= {(√7)² + (√12)² + 2√(7 × 12)}

= (√7 + √12)²

⇒ √(19 + 4√21) = √{(√7 + √12)2} = √7 + √12

= √7 + 2√3

Calculation:

18 men 1-day work = 1/25

1 men 1 day work = 1/(18 × 25) = 1/450

36 men 1 day work = 36 × 1/450 = 2/25

Similarly,

25 boys 1 day work = 1/25

1 boy 1 day work = 1/(25 × 25) = 1/625

10 boys 1 day work = 10 × 1/625 = 2/125

Hence,

1 day work of 36 men and 10 boys = 2/25 + 2/125 = 12/125

∴ 36 men and 10 boys will complete the work in 125/12 days

Alternate Method According to the question,

18 × M = 25 × B

⇒ M/B = 25/18

Total work = 25 × 25 × 18

Total efficiency = 36 × 25 + 10 × 18

⇒ 1080

Required time = (25 × 25 × 18)/1080

⇒ 125/12 days

Given:

Distance = 450 m

Time = 9 seconds

Formula used:

Speed = Distance/Time

Calculation:

Speed of Vipin = Distance traveled by Vipin/Time taken 

⇒ 450/9 = 50 m/sec.

⇒ 50 × (18/5) = 180 km/hr

In the year 2012, 2015 and 2016, the number of vacancies are more than their previous year

No. of vacancies in 2014 = 30

No. of vacancies in 2013 = 55

∴ The no. of vacancies are lesser than the previous year in 2014

No. of vacancies in 2016 = 100

No. of vacancies in 2014 = 30

∴ Required differnce = 100 – 30 = 70

No. of vacancies in 2016 = 100

No. of vacancies in 2014 = 30

∴ The number of vacancies in 2014 were lesser than that in 2016 by = (100 – 30)/100 = 70% = 0.7

Salary of an executive = Rs. 30000

No. of vacancies in 2017 = 40

∴ Increase in the expense = 30000 × 40 = Rs. 1200000 = Rs. 12 lakhs

Calculation:

Area of a trapezium = [(sum of parallel sides) × (height of trapezium)]/2

Area of given trapezium = [(10 + 8) × 6]/2

= 9 × 6

= 54 cm²

∴ Area of given trapezium is  54 cm²

Calculation:

Diameter (d) of circle = 7 cm

Radius (r) = 7/2

Circumference of a circle = 2πr

Using π = 22/7

Circumference of given circle = 2 × 22/7 × 7/2

⇒ 22 cm

∴ The circumference of the circle is 22 cm.

Calculation:

Volume of a cube = (side)³

Volume of the cube with side 6.5 cm = (6.5)³

= 274.625 cm³

∴ Volume of the cube is 274.625 cm3

Given:

in ∆DEF, ∠E = 90° and ∠D = 30°

Calculation:

Sum of angles of a triangle = 180°

⇒ ∠D + ∠E + ∠F = 180°

⇒ 30° + 90° + ∠F = 180°

⇒ ∠F = 180° – 120° = 60°

(cos F + √3) = cos 60° + √3

=  ½ + √3

= (1 + 2√3)/2

Calculation:

In the given ∆DEF shown below,

sin D = opposite/hypotenuse = EF/DF = 15/17

⇒ EF = 15 units and DF = 17 units

Using Pythagoras's theorem,

⇒ DE² = DF² - EF² = 17² - 15² = 289 - 225 = 64

⇒ DE = √64 = 8 units

∴ cot F = hypotenuse/opposite = EF/DE = 15/8

The correct answer is Titanic.

 Key Points

• Titanic:-
• ​It is an American movie honored with eleven Oscar Awards including Best Picture and Best Director on 23^rd March 1998.
• Though the film was nominated for 14 awards but won in 11 categories only.
• James Cameron is the director of this movie.

Additional Information

• Oscars:-​
• The Oscar Award is cinema's most prestigious award,
• It is awarded to recognize the excellence of professionals including directors, actors, and writers in the film industry.
• The award is organized annually by the American Academy of Motion Picture Arts and Sciences (AMPAS).
• The award consists of 24 categories. Those given for artistic and technical qualifications in the film industry.
• This is the award ceremony given to the world's oldest cinema world.
• Award winners are given a copy of a gold statue.
• It is officially known as 'Academy Award Merit' and commonly known as 'Oscar'.

The correct answer is Rajasthan.

Key Points

• Chittorgarh Fort:-
• It is located in the southern part of Rajasthan.
• Earlier the fort was the capital of Mewar district.
• It is one of the largest forts in India at 180 meters in height.
• It is also included in the list of UNESCO World Heritage Sites.
• Rana Kumbha Palace is the oldest monument of this fort.

The correct answer is the small intestine.

Key Points 

• The small intestine is the main digester and absorber of food.
• It consists of three parts namely - Duodenum, Jejunum, and Ileum.
• Duodenum - It is the first part of the small intestine. It helps in the digestion of chyme in food.
• Jejunum - It is the second part of the small intestine. Most of the nutrients take place in it.
• Ileum - It is the third part of the small intestine. It absorbs nutrients that did not get absorbed by the jejunum.
• Colan is part of the large intestine and the Liver is part of the digestive gland in the stomach.

Additional Information

• Stomach :
• The stomach is a muscular organ located on the left side of the upper abdomen.
• The stomach receives food from the esophagus.
• As food reaches the end of the esophagus, it enters the stomach through a muscular valve called the lower esophageal sphincter.
• The stomach secretes acid and enzymes that digest food.
• Liver
• The liver plays a central role in maintaining blood glucose levels.
• When the body doesn't need to use glucose for energy, it stores it in the liver and muscles.
• This stored form of glucose is made up of many connected glucose molecules and is called glycogen.
• When the body needs more energy, certain proteins called enzymes break down glycogen into glucose.
• They send the glucose out into the body.
• This is stimulated by the insulin release of around 100g of glycogen stored in the liver.
• Colon​
• The term colon is sometimes used to refer to the entire large intestine.
• The primary function of the large intestine, however, is the absorption of water, electrolytes, and vitamins from digestive residues (a process that usually takes 24 to 30 hours) and the storage of fecal matter until it can be expelled.
• The last stages of chemical digestion occur in the large intestine through bacterial action. Substances are further broken down and some vitamins are synthesized.

The correct answer is Aspirin.

Explanation:

• The bark of the willow tree is a source of the medicine “Aspirin”.
• It is a pain reliever medicine made up of the active ingredients of willow bark which is known as salicin.
• It is a herbal medicine tree that grows all around the world besides Antarctica and Australia.
• Tea can also be made out of it to cure a headache and fevers.

The correct answer is Goat.

Key Points

• Capra Hircus is the scientific name of “Goat”.

Additional Information

Functions of a catalyst in a chemical reaction:

• A positive catalyst speeds up a chemical reaction.
• A catalyst lowers the activation energy to a chemical reaction for it to start and happen quickly.
• It accelerates the rate of reaction.
• Note: An Inhibitor slows down a reaction.

Key Points

• Inhibitor: An inhibitor is a substance that slows down or retard a chemical reaction.Example: Acetanilide slows down the decomposition of hydrogen peroxide.  2H2O2  →  2H2O + O2
• Promoter:   A promoter is a substance which added with a catalyst to increase its activity or selectivity. Example: Traces of molybdenum is used as a promoter in the Haber process(formation of ammonia) to increase the catalytic activity of iron
• Moderator: Moderators are used in nuclear reactors to slow down the fast-moving neutrons. Example: Graphite, heavy water(D2O).

The correct answer is Silver.

Explanation:

• Silver  atomic no is greater than Bromine.
• Silver has a higher atomic number when compared to Bromine.
• In the periodic table also Silver has an atomic number 47, whereas bromine has atomic number 35.

The correct answer is Graphical User Interface.

Key Points

• Graphical User Interface:-
• It is a form of user interface that allows users to interact with electronic devices.
• The GUI interacts with electronic devices through graphical icons and visual indicators such as secondary notation, instead of text-based user interfaces, typed command labels, or text navigation.

The correct answer is Puducherry.

Key Points

• Part XVII of the Constitution of India deals with the official language.
• ​It contains Article 343 to Article 351.
• It consists of the following chapters:

1. ​Language of the Union
2. Regional Languages
3. Languages of the Supreme Court, High Court, etc.
4. Special Directives

Additional Information

The correct answer is 2.5 per cent.

Key Points

• Here percentage method (Ed) = -1.6
• Percentage change in quantity demanded = 4
• Percentage change in price =?
• So as per the formula,
• The Elasticity of demand (Ed) = Percentage change in quantity demanded/Percentage change in price.
• Percentage change in price = -4/1.6 = -2.5.
• Hence the prices have to be reduced by 2.5 per cent.

Additional Information

ELASTICITY OF DEMAND

• The demand for goods moves in the opposite direction of their price. But the impact of the price change is always not the same. Sometimes, the demand for goods changes considerably, even for small price changes. On the other hand, there are some goods for which the demand is not affected much by price changes.
• Demands for some goods are very responsive to price changes, while demands for certain others are not so responsive to price changes.
• Price elasticity of demand is a measure of the responsiveness of the demand for a good to changes in its price.
• The price elasticity of demand for a good is defined as the percentage change in demand for the good divided by the percentage change in its price.

The correct answer is increase; decrease.

 Key Points

• Here, are some facts about the supply and demand of a quantity in economics:
• If the price of steel increases, then the equilibrium price of new two-wheelers will increase and the equilibrium quantity will decrease.
• If the price of steel increases, the supply curve for two-wheelers will shift to the left because the suppliers are unable to bear high-priced steel to make cars, it compels the suppliers to produce less.
• The demand curve will remain the same.
• The equilibrium price will increase due to the fact that the suppliers want more money because they are losing money when buying expensive steel.
• The number (quantity) of two-wheelers will decrease because the suppliers are not interested to buy expensive steel to make and sell a large number of two-wheelers.

The correct answer is Parasitic.

Explanation:

• Key facts about pathogens and the diseases caused by them:
• Parasitic type of pathogen causes the water-borne disease Ascariasis.
• It is a roundworm organism found in the small intestine and mostly occurs in children.
• The infection takes place by eating food or drinking contaminated water with Ascaris eggs from human excreta.
• Abdominal pain, Abdominal swelling, shortness of breathing, fever and diarrhoea are the main symptoms of this disease.
• Ascaris is a commonly found parasitic worm in humans.
• Ascariasis, a type of helminthiasis, is one of the groups of neglected tropical diseases.
• This disease is prevalent worldwide, especially in tropical and subtropical countries.
• Parasitic type of pathogen causes the water-borne disease Ascariasis.
• It is a roundworm organism found in the small intestine that mostly occurs in children.
• The infection takes place by eating food or drinking contaminated water with Ascaris eggs from human excreta.
• Abdominal pain, Abdominal swelling, shortness of breathing, fever, and diarrhoea are the main symptoms of this disease.

Key Points

• Bacterial type of pathogen causes the water-borne disease dysentery.
• It is an inflammatory disease of the intestine mostly in the colon which prompts diarrhoea and abdominal pains.
• It is caused by various types of infectious pathogens such as bacteria, viruses, and parasites.
• Its most common symptoms are fever and dysentery.

Confusion Points

• The cause of dysentery is usually the bacteria from genus Shigella, in which case it is known as shigellosis, or the amoeba Entamoeba histolytica; then it is called amoebiasis.
• Hence the correct answer is bacteria.

The correct answer is Coal.

Key Points

• Coal:-
• ​It is the major electricity generation power source in India.
• There are different types of thermal power plants based on the fuel, used to produce steam such as coal, gas, diesel and natural gas.
• It is the main source of electricity because coal-fired power plants convert coal to gas for use in a gas cylinder to produce electricity.

Additional Information

• Nuclear power
• Nuclear power is the fifth-largest source of electricity in India.
• As of March 2017, India has 22 nuclear reactors in operation at seven sites, having an installed capacity of 6780 MW.
• It produces a total of 30,292.91 GWh of electricity.
• 11 more reactors are under construction to generate an additional 8,100 MW.
• Hydro power
• India is 5th globally for installed hydroelectric power capacity
• India's hydroelectric power potential is estimated at 148,700 MW at 60% of load factor.
• In the fiscal year 2019–20, the total hydroelectric power generated in India was 156 TWh.

The correct answer is Cartographer.

Key Points

• A person, who draws or makes maps or charts, is called Cartographer.

Additional Information

The correct answer is Raja Raja Chola I

 Key Points

• Brihadeshwara Temple of Thanjavur
• It was built by Raja Raja Chola I.
• Brihadeshwara Temple, Thanjavur is in Tamil Nadu. It is a Hindu Temple dedicated to Lord Shiva.
• It is one of the largest Temple in the southern part of India.
• It is built between 1003 and 1010 AD by Raja Raja Chola I in Dravidian architecture style.
• It is in the list of UNESCO World Heritage Site.
• It is also called as Dakshina Meru which simplifies “Meru of South”.
• Rajaraja Chola I (985 - 1014 AD):
• He was one of the greatest emperors of the Chola empire.
• In his reign, the Cholas expanded beyond South India stretching from Klinga in the north to Sri Lanka in the south.
• He fought many battles with the Chalukyas in the north and the Pandyas in the south.
• He built the Brihadishwara temple in Thanjavur dedicated to Lord Shiva.
• He also helped in the construction of a Buddhist monastery at Nagapattinam.
• He was succeeded by his son Rajendra Chola I in 1014 AD.

Additional Information

• Rajendra Chola I (1014-44 AD):
• He was considered as one of the greatest rulers and military generals of south India.
• He continued his father's policy of aggressive conquests and expansion.
• Apart from reaching northwards to river Ganga and moving overseas to the Maldives and Sri Lanka, he also invaded the Southeast Asian territories.
• He defeated Jayasimha II of the western Chalukyas and consequently, River Tungabhadra was recognized as the boundary between the Cholas and Chalukyas.
• He founded the city Gangaikondacholapuram and constructed the famous Rameshwaram temple in the city.
• He also excavated a large irrigation tank called Cholagangam on the western side of the city.
• He assumed many titles, the most important ones being Mudikondan, Gangaikondan, Kadaram Kondan and Pandita Cholan.
• He built Shiva temple at Gangaikondacholapuram.
• Rajaraja II:
• The Chola emperor Rajaraja II ruled from 1150 to 1173 CE.
• The inscriptions of Rajaraja II date his rule to 1146 because he was appointed his heir apparent and Co-Regent in that year.
• During Rajaraja's reign, indications of the dynasty's impending collapse started to appear.

About Salt March:

• Salt March is also known as Dandi March was initiated by Mahatma Gandhi.
• It was started on 12 March 1930 and rallied for 24 days at Sabarmati near Ahmedabad.
• Gandhiji and more than thousands of people got arrested while making their own salt as a protest of British rule and British taxation of salt production to make it legal and tax-free.
• It ultimately turned into a victory when the British unleashed the protesters from prison and granted the people to make their own salt.

The correct answer is 1922.

Key Points

• Chauri-Chaura incident:-
• The Chauri Chaura incident took place on 5^th February 1922 in the Gorakhpur District of Uttar Pradesh.
• During the Non-cooperation Movement, a group of protestors clashed with the local Police and as a result of this, Policemen opened fire on the protestors.
• Many leaders of the Non-Cooperation Movement were arrested and locked up at the Chauri Chaura police station.
• Response to the beatings and imprisonment of verification against the police on the following day was known to be as Chauri Chaura incident.

Additional Information

• Non-Cooperation Movement (1920-1922):
• Mahatma Gandhi announced his plan to begin Non-Cooperation with the government as a response to the Rowlatt Act, the Jallianwala Bagh massacre, and the Khilafat movement.
• Programs:
• Surrender of titles and honorary position
• Resignation of membership from the local bodies
• Boycott of elections held under the provisions of the 1919 Act
• Boycott of government functions
• Boycott of courts, government schools, and colleges
• Boycott foreign goods
• Establishment of national schools, colleges, and private panchayat courts
• Popularising Swadeshi goods and Khadi

Alexander Graham Bell invented Telephone.

The correct answer is Psophometer.

Key Points

• The Psophometer measures AF(Audio Frequency) signal level and noise.

Additional Information

The correct answer is [ALT-2].

Key Points

• The process of defining dimensions for the physical quantities:
• If a physical quantity has the units - ampere meters per second squared, then its dimensions are [ALT^-2].
• Ampere is Electric current (Rate of flow of electrical charge per unit time) and its dimension is A.
• Metre is Length (one dimension extent of an object) and dimension is L.
• The Second is Time (The duration of an event) and its dimension is T.

The correct answer is 1976

 Key Points

• The 42nd Amendment of the Constitution of India:
• The 42^nd Amendment of the Constitution of India was enacted in the year 1976.
• It is officially known as the Constitution Act, of 1976.
• It was enacted during the Emergency by the Indian National Congress Head Indira Gandhi.
• It is considered the most controversial Constitutional Amendment in Indian history.
• Added three new Directive Principles viz., equal justice and free legal aid, the participation of workers in the management of industries, and protection of the environment, forests, and wildlife.
• Provided for the creation of the All-India Judicial Service.
  

Shortened the procedure for disciplinary action by taking away the right of a civil servant to make representation at the second stage after the inquiry (i.e., on the penalty proposed).

• It is often called a "mini-Constitution" or the "Constitution of Indira".

Additional Information

• Amendment in the Constitution of India:- 
• Article 368 in Part XX deals with the powers of Parliament to amend the Constitution and its procedure.
• Parliament cannot amend those provisions which form the 'basic structure of the Constitution'. (Kesavananda Bharti Case)
• The amendment of the Constitution can be initiated by the introduction of a bill in either house of the Parliament. (does not in the legislature)
• The bill can be introduced either by a minister or by a private member. (does not require prior permission of the President)
• It must be passed in each house by a special majority. (the majority of the total membership of the house and a majority of 2/3rd of the members of the house present and voting)
• Each house must pass the bill separately. (no provision for joint sittings)
• If the bill is for amending the federal structure of the Constitution, then it must be ratified by the legislature of half of the states by a simple majority. (the majority of the members of the house present and voting)
• President must give his assent to the bill. (neither withhold his assent nor return the bill)
• After the assent of the President, the bill becomes an Act.

The correct answer is option 2, i.e. 5.

Key facts of Chhattisgarh:

• The number of parliamentary seats (Rajya Sabha) of Chhattisgarh is 5.

Russia’s seven swimmers were banned from the Rio Olympics.

• They are banned by the Governing body of World Aquatics FINA (Federation Internationale De Natation ) over doping allegations.
• The swimmers who bannedin 2016 Olympics are Mikhail Dovgalyuk, Daria Ustinova, Natalia Lovtcova, Anastasia Krapivina, Vladimir Morozov, Yulia Efimova and Nikita Lobintsev.