SSC CHSL 2015 PYQs

Question 1

54963?724652045

Accepted Answer

The pattern involves multiplying the digits of the previous number to get the next. 5*4=20, 9*6=54, 3*1=3, 7*2=14, 4*6=24, 5*2=10, 0*4=0, 5*0=0. So, the missing number is 1.

Question 2

Ant : Fly : Bee :: Hamster : Squirrel: ?

Accepted Answer

The first set (Ant, Fly, Bee) are all insects. The second set (Hamster, Squirrel) are both rodents. Therefore, the missing word must also be a rodent, which is Mouse.

Question 3

144 : 13 :: 49 ?

Accepted Answer

The pattern is (square root of first number) + 1. So, for 144, it's sqrt(144) + 1 = 12 + 1 = 13. For 49, it's sqrt(49) + 1 = 7 + 1 = 8.

Question 4

QPOR : XWVY : LKJM : ?

Accepted Answer

The pattern is that each letter in the second term is 7 positions ahead of the corresponding letter in the first term. Applying the same +7 logic to LKJM: L(12)+7=S(19), K(11)+7=R(18), J(10)+7=Q(17), M(13)+7=T(20).

Question 5

The sum of ages of mother, daughter and son is 87 years. What will be the sum of their ages after 8 years ?

Accepted Answer

Each of the three individuals will age by 8 years. So, the total increase in their combined age will be 3 * 8 = 24 years. Add this to the current sum: 87 + 24 = 111 years.

Question 6

Find the odd number.

Accepted Answer

All numbers except 56 are powers of 2 (2^1, 2^7, 2^4 respectively). 56 is not a power of 2, making it the odd one out.

Question 7

ABDE GHJK MNPQ

Accepted Answer

The pattern is +2 letters, skip 1, +2 letters, skip 1. ABDE skips C, GHJK skips I, MNPQ skips O. Following this, STVW skips U.

Question 8

ACE : GIK :: MOQ : ?

Accepted Answer

The pattern is +6 for each letter's position. A(1)+6=G(7), C(3)+6=I(9), E(5)+6=K(11). Applying this to MOQ: M(13)+6=S(19), O(15)+6=U(21), Q(17)+6=W(23). So, SUW.

Question 9

GNIDAER : READING :: NOITULOS :?

Accepted Answer

The first word 'GNIDAER' is the reverse spelling of 'READING'. Applying the same logic, 'NOITULOS' when reversed spells 'SOLUTION'.

Question 10

Unscramble the following letters to frame a meaningful word.  Then find out the correct numerical positions of the letters.O T Y S R H I1 2 3 4 5 6 7

Accepted Answer

The jumbled letters O T Y S R H I form the meaningful word 'HISTORY'. Mapping the original positions: H(6), I(7), S(4), T(2), O(1), R(5), Y(3). So the sequence is 6742153.

Question 11

Book : Wallet :: Cell

Accepted Answer

A book is made of pages, and a wallet is made of cells. Similarly, a cell is a fundamental unit that forms tissue. Thus, Tissue is the correct answer.

Question 12

If it is possible to form a word with the first, fourth, seventh and  eleventh letters in the word ‘SUPERFLUOUS’ write the first letter of that word.

Accepted Answer

Extracting the 1st, 4th, 7th, and 11th letters from 'SUPERFLUOUS' gives S, E, O, L. Rearranging these letters forms the word 'LOSE'. The first letter of 'LOSE' is L.

Question 13

Find the odd numbers pair.

Accepted Answer

The pattern is x, (x^3 + 3). For option 3, 7^3 + 3 = 343 + 3 = 346, not 345. All other options follow this rule.

Question 14

21 : 3 :: 574 : ?

Accepted Answer

The pattern is x : (x/7). So, 21/7 = 3. Applying the same, 574/7 = 82. Thus, 82 is the correct answer.

Question 15

Two statements are given, each followed by two  conclusion/assumption, I and II. You have to consider the statement to be true even if they seem to be at variance  from commonly known facts. You have to decide which of the given conclusion/assumptions, if any,  follows from the given statements.Statements:(i) Some papers are pens(ii) All the pencils are pensConclusions:I. Some pens are pencilsII. Some pens are papers

Accepted Answer

From 'All pencils are pens', it logically follows that 'Some pens are pencils'. From 'Some papers are pens', it follows that 'Some pens are papers'. Both conclusions are valid.

Question 16

In the certain code CONVENTIONAL is written as NOCNEVOITLAN. How is ENTHRONEMENT in that code written ?

Accepted Answer

The word is divided into blocks of three letters, and each block is reversed. CON becomes NOC, VEN becomes NEV, TIO becomes OIT, NAL becomes LAN. Applying this to ENTHRONEMENT: ENT becomes TNE, HRO becomes ORH, NEM becomes MEN, ENT becomes TNE.

Question 17

Which conclusions is true with respect to the given statements ?Statements:(i) Roy studies History and Political Science(ii) Roy studies in Oxford UniversityConclusions:

Accepted Answer

Combine both statements directly. Statement (i) says Roy studies History and Political Science. Statement (ii) says Roy studies in Oxford University. Therefore, Roy studies History and Political Science in Oxford University.

Question 18

Bullock : Cart : : Horse : ?

Accepted Answer

The analogy is based on an animal and the vehicle it pulls. A bullock pulls a cart, similarly, a horse pulls a tonga (horse-drawn carriage).

Question 19

If Ramya’s rank is 22nd out of 46 students. What is her rank from the last ?

Accepted Answer

To find the rank from the last, use the formula: Total students - Rank from front + 1. So, 46 - 22 + 1 = 25.

Question 20

Motor : Coil : : ?

Accepted Answer

A coil is an essential internal part of a motor. Similarly, a bearing is an essential internal part of a wheel, allowing it to rotate smoothly.