SSC CHSL 2017 PYQs

Question 1

Select the word with the correct spelling.

Accepted Answer

The correct spelling among the given options is 'deviance'. The other words 'humanoide', 'rikshaw', and 'virtuos' are misspelled.

Question 2

Rearrange the parts of the sentence in correct order.Today, less privileged whiteP- Americans are considered to beQ- and pathologists predominatesR- in crisis, and the language of sociologists

Accepted Answer

The sentence starts with 'Today, less privileged white'. The subject 'Americans' (P) logically follows. They 'are considered to be in crisis' (R). The second clause explains whose language 'predominates' (Q), connecting 'sociologists' (from R) with 'pathologists' (from Q). Thus, the correct order is PRQ.

Question 3

Select the antonym of fidget

Accepted Answer

Fidget means to make small, restless movements. The antonym is 'composed,' meaning calm and self-possessed, which is the opposite of fidgeting.

Question 4

Rearrange the parts of the sentence in correct order.In punishment for the uprising,P-called tributes, to participateQ-each of the twelve districts must provideR-one girl and one boy,

Accepted Answer

The sentence starts with the introductory phrase. Then, 'each of the twelve districts must provide' (Q) logically follows, specifying who provides what. Finally, 'one girl and one boy, called tributes, to participate' (R then P) completes the thought.

Question 5

Which of the following equations has 3 as a root?

Accepted Answer

Substitute x=3 into each equation. The equation that results in 0 is the correct one. For option 1, 3^2 - 7(3) + 12 = 9 - 21 + 12 = 0.

Question 6

A bank offers 5% compound interest per half year. A customer deposits Rs 8000 each on 1st January and 1st July of a year. At the end of the year, the amount he  would have gained by way of interest is

Accepted Answer

First deposit (Jan 1) earns interest for two half-years: 8000 * (1.05)^2 = 8820. Second deposit (Jul 1) earns interest for one half-year: 8000 * (1.05) = 8400. Total interest = (8820 - 8000) + (8400 - 8000) = 820 + 400 = 1220.

Question 7

In ΔDEF, G and H are points on side DE and DF  respectively. GH is parallel to EF. If G divides DE in the  ratio  3:2 and HF is 8 cm, then the length of DF is

Accepted Answer

By Basic Proportionality Theorem, DG/GE = DH/HF. Given DG:GE = 3:2 and HF = 8 cm. So, DH/8 = 3/2, which means DH = 12 cm. Therefore, DF = DH + HF = 12 + 8 = 20 cm.

Question 8

Select the antonym of vibrant

Accepted Answer

Vibrant means full of energy and life. Drab means lacking brightness or interest, making it the direct opposite. Therefore, 'drab' is the correct antonym.

Question 9

Improve the bracketed part of the sentence.(I myself think) that this investigation is biased.

Accepted Answer

The phrase 'I myself think' correctly uses 'myself' for emphasis, indicating the speaker's personal conviction. No grammatical error or awkwardness is present, so no improvement is needed.

Question 10

Select the antonym of sacred

Accepted Answer

The word 'sacred' means holy or dedicated to a religious purpose. Its antonym is 'profane,' which means relating or devoted to that which is not sacred or biblical.

Question 11

Select the antonym of conjoined

Accepted Answer

Conjoined means joined together. The antonym is 'sever', which means to cut off or separate. The other options are synonyms or related terms.

Question 12

Amar is 2 times as good a workman as Badal and therefore is able to finish a job in 15 days less than Badal. In how many days can they together complete the  job?

Accepted Answer

Amar is twice as efficient, so he takes half the time. If the time difference is 15 days, Badal takes 30 days and Amar takes 15 days. Together, they complete it in (30*15)/(30+15) = 10 days.

Question 13

If16qxy=(2x+y)2−(2x−y)2, then what is the value of q?

Accepted Answer

Use the identity (a+b)² - (a-b)² = 4ab. Here, a=2x and b=y. So, (2x+y)² - (2x-y)² = 4(2x)(y) = 8xy. Equating 16qxy = 8xy, we get 16q = 8, thus q = 0.5.

Question 14

Common factor of12a4b6,18a6c2,36a2b2is

Accepted Answer

Find the HCF of the numerical coefficients (12, 18, 36) which is 6. For variables, take the lowest power present in all terms. Thus, HCF is 6a².

Question 15

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by  selecting the appropriate option.If you are caught using a calculator in the exam then it will be ...................

Accepted Answer

The word 'confiscated' means to take or seize someone's property with authority. It perfectly fits the context of a calculator being taken away in an exam.

Question 16

Improve the bracketed part of the sentence.Everyday we (have usually) dinner at 8 o'clock.

Accepted Answer

Adverbs of frequency like 'usually' are typically placed before the main verb. So, 'usually have' is the correct placement for the adverb.

Question 17

What is the equation of the line which intercepts x-axis and y-axis at 3/4 and 2/3 respectively?

Accepted Answer

Use the intercept form of a line, x/a + y/b = 1, where a = 3/4 and b = 2/3. Substitute values to get x/(3/4) + y/(2/3) = 1, which simplifies to 4x/3 + 3y/2 = 1. Multiply by 6 to clear denominators: 8x + 9y = 6.

Question 18

The greatest four digit number that is divisible by both 15  and 35 is

Accepted Answer

Find the LCM of 15 and 35, which is 105. Divide the greatest four-digit number (9999) by 105. Subtract the remainder (99) from 9999 to get 9900. Then add 75 (105-30) to get 9975.

Question 19

The total surface area of a hemisphere is 462 sq cm, what is its curved surface area? (Take π = 22/7)

Accepted Answer

Total surface area of hemisphere = 3πr². Given 3πr² = 462, so πr² = 154. Curved surface area = 2πr² = 2 * 154 = 308 sq cm.

Question 20

Improve the bracketed part of the sentence. Human beings are social animals, (who are living in communities), regulated by social norms and laws.

Accepted Answer

The phrase 'who are living' is redundant. The present participle 'living' alone effectively conveys the same meaning while making the sentence more concise and grammatically sound.