SSC GD Reasoning Questions
39 questions on General Intelligence and Reasoning for SSC GD. Each comes with the correct answer and a worked explanation.
- Questions
- 39
- Easy
- 18
- Moderate
- 21
Reasoning topics
Reasoning questions with solutions
In a certain code language, 'LIGHT' is written as 'KHFGS'. How will 'WATER' be written in that language?
- (A)VZSDQ
- (B)XBUFS
- (C)WATER
- (D)UYRCP
Show answer and explanation
Correct answer: (A) VZSDQ
Comparing 'LIGHT' with 'KHFGS', every letter is moved 1 place backward in the English alphabet. Moving each letter of 'WATER' 1 place backward gives 'VZSDQ'.
Three of the following four numbers are alike in a certain way and one is different. Select the odd one out.
- (A)85
- (B)117
- (C)91
- (D)104
Show answer and explanation
Correct answer: (A) 85
Each of 91, 117, 104 is a multiple of 13, whereas 85 is not a multiple of 13. Therefore 85 does not belong to the group and is the odd one out.
Select the letter that will come next in the following series. I, K, M, O, Q, ?
- (A)R
- (B)T
- (C)Q
- (D)S
Show answer and explanation
Correct answer: (D) S
Each letter is 2 positions ahead of the previous one in the English alphabet (I → K → M …). Moving 2 positions ahead of Q gives S.
Pooja walks 7 km towards the south, then turns and walks 24 km towards the east. How far is Pooja from the starting point?
- (A)25 km
- (B)17 km
- (C)31 km
- (D)26 km
Show answer and explanation
Correct answer: (A) 25 km
The two legs of the walk are at right angles, so the shortest distance from the start is the hypotenuse: √(7² + 24²) = √(49 + 576) = √625 = 25 km.
Shortcut: 7-24-25 is a Pythagorean triple.
In a row of students, Karan is 12th from the left end and 24th from the right end. How many students are there in the row?
- (A)34
- (B)37
- (C)36
- (D)35
Show answer and explanation
Correct answer: (D) 35
Total students = (position from left) + (position from right) − 1, because Karan is counted twice. So the total = 12 + 24 − 1 = 35.
Shortcut: Total = left rank + right rank − 1.
If 'P' means '×', 'Q' means '+' and 'R' means '−', what is the value of the following expression? 9 P 7 Q 22 R 9
- (A)85
- (B)78
- (C)76
- (D)29
Show answer and explanation
Correct answer: (C) 76
Replacing the letters with the operations gives 9 × 7 + 22 − 9. Following BODMAS, multiply first: 63 + 22 − 9 = 76.
Select the number that will come next in the following series. 26, 36, 46, 56, 66, ?
- (A)86
- (B)78
- (C)76
- (D)74
Show answer and explanation
Correct answer: (C) 76
Each term is obtained by adding 10 to the previous term. Applying the same pattern to the last given term 66 gives 76, which is the next number in the series.
Select the option that is related to the third number in the same way as the second number is related to the first number. 6 : 42 :: 11 : ?
- (A)132
- (B)22
- (C)121
- (D)122
Show answer and explanation
Correct answer: (A) 132
In the first pair, 42 is the product of the first number and the next consecutive number (6 → 42). Applying the same relation to 11 gives 132, so 132 completes the analogy.
In a certain code language, 'PAPER' is written as 'TETIV'. How will 'WATER' be written in that language?
- (A)SWPAN
- (B)ZDWHU
- (C)AEXIV
- (D)BFYJW
Show answer and explanation
Correct answer: (C) AEXIV
Comparing 'PAPER' with 'TETIV', every letter is moved 4 places forward in the English alphabet. Moving each letter of 'WATER' 4 places forward gives 'AEXIV'.
Three of the following four numbers are alike in a certain way and one is different. Select the odd one out.
- (A)31
- (B)43
- (C)21
- (D)11
Show answer and explanation
Correct answer: (C) 21
Each of 31, 43, 11 is a prime number, whereas 21 is not a prime number. Therefore 21 does not belong to the group and is the odd one out.
Select the letter that will come next in the following series. B, F, J, N, R, ?
- (A)W
- (B)T
- (C)V
- (D)U
Show answer and explanation
Correct answer: (C) V
Each letter is 4 positions ahead of the previous one in the English alphabet (B → F → J …). Moving 4 positions ahead of R gives V.
Anita walks 20 km towards the south, then turns and walks 21 km towards the west. How far is Anita from the starting point?
- (A)31 km
- (B)1 km
- (C)41 km
- (D)29 km
Show answer and explanation
Correct answer: (D) 29 km
The two legs of the walk are at right angles, so the shortest distance from the start is the hypotenuse: √(20² + 21²) = √(400 + 441) = √841 = 29 km.
Shortcut: 20-21-29 is a Pythagorean triple.
In a row of students, Amit is 11th from the left end and 21th from the right end. How many students are there in the row?
- (A)33
- (B)30
- (C)32
- (D)31
Show answer and explanation
Correct answer: (D) 31
Total students = (position from left) + (position from right) − 1, because Amit is counted twice. So the total = 11 + 21 − 1 = 31.
Shortcut: Total = left rank + right rank − 1.
If 'P' means '×', 'Q' means '+' and 'R' means '−', what is the value of the following expression? 4 P 5 Q 21 R 5
- (A)15
- (B)41
- (C)25
- (D)36
Show answer and explanation
Correct answer: (D) 36
Replacing the letters with the operations gives 4 × 5 + 21 − 5. Following BODMAS, multiply first: 20 + 21 − 5 = 36.
Anita says, "The woman in the picture is the mother of my father's only grandchild's father." If Anita has no siblings, how is the woman related to Anita?
- (A)Daughter
- (B)Wife
- (C)Sister
- (D)Mother
Show answer and explanation
Correct answer: (D) Mother
Anita has no siblings, so the father's only grandchild is Anita's own child, and that child's father is Anita. The mother of Anita is therefore the woman in the picture.
Showing 15 of 39 questions. Start a practice set above to work through the rest.
Frequently asked questions
How many SSC GD Reasoning questions can I practise here?
39 questions — 18 easy and 21 moderate. 15 are shown on this page with answers and explanations, and the practice set draws from all of them.
How should I practise Reasoning for SSC GD?
Read through a few solved questions first to see the method, then take a timed practice set. Afterwards, check which questions you got wrong or spent longest on and redo those before moving on.