SSC first · CGL and related exams

SSC · Number Series practice

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Previous-year papers · timed practice

English SSC CGL Tier I papers. Free 60-minute mocks, 100 questions, 200 marks; +2 correct and −0.5 incorrect. Source: SSC response sheets preserved by SSC Portal. The marked archived keys have not been independently revalidated against final SSC keys; worked explanations are pending review. A/B/C/D correspond to source options 1/2/3/4.

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Question 1 · Reasoning Ability · Number Series
What comes next in the series: 11, 13, 15, 17, ?
Choose your answer for question 1
Answer and explanation

Correct answer: A

Each term increases by 2, so next = 19.

Question 2 · Reasoning Ability · Number Series
If A is coded as E, B as G, C as I, what is the code for A?
Choose your answer for question 2
Answer and explanation

Correct answer: C

The sequence shifts each letter by 2 position(s).

Question 3 · Reasoning Ability · Number Series
A person walks 13 metres north, turns right and walks 8 metres. Which direction is the person from the starting point?
Choose your answer for question 3
Answer and explanation

Correct answer: C

From north and then right, the person ends up to the north-east of the starting point.

Question 4 · Reasoning Ability · Number Series
If P is the father of Q and Q is the mother of R, how is P related to R?
Choose your answer for question 4
Answer and explanation

Correct answer: D

P is the grandfather of R.

Question 5 · Reasoning Ability · Number Series
Which one is the correct relation? Cat is to Kitten as Dog is to ?
Choose your answer for question 5
Answer and explanation

Correct answer: A

A young dog is called a puppy.

Question 6 · Reasoning Ability · Number Series
What comes next in the series: 36, 43, 50, 57, ?
Choose your answer for question 6
Answer and explanation

Correct answer: B

Each term increases by 7, so next = 64.

Question 7 · Reasoning Ability · Number Series
If A is coded as K, B as N, C as Q, what is the code for A?
Choose your answer for question 7
Answer and explanation

Correct answer: B

The sequence shifts each letter by 3 position(s).

Question 8 · Reasoning Ability · Number Series
A person walks 18 metres north, turns right and walks 8 metres. Which direction is the person from the starting point?
Choose your answer for question 8
Answer and explanation

Correct answer: D

From north and then right, the person ends up to the north-east of the starting point.

Question 9 · Reasoning Ability · Number Series
If P is the father of Q and Q is the mother of R, how is P related to R?
Choose your answer for question 9
Answer and explanation

Correct answer: B

P is the grandfather of R.

Question 10 · Reasoning Ability · Number Series
Which one is the correct relation? Cat is to Kitten as Dog is to ?
Choose your answer for question 10
Answer and explanation

Correct answer: B

A young dog is called a puppy.

Question 11 · Reasoning Ability · Number Series
What comes next in the series: 21, 26, 31, 36, ?
Choose your answer for question 11
Answer and explanation

Correct answer: C

Each term increases by 5, so next = 41.

Question 12 · Reasoning Ability · Number Series
If A is coded as I, B as M, C as Q, what is the code for A?
Choose your answer for question 12
Answer and explanation

Correct answer: A

The sequence shifts each letter by 4 position(s).

Question 13 · Reasoning Ability · Number Series
A person walks 23 metres north, turns right and walks 8 metres. Which direction is the person from the starting point?
Choose your answer for question 13
Answer and explanation

Correct answer: A

From north and then right, the person ends up to the north-east of the starting point.

Question 14 · Reasoning Ability · Number Series
If P is the father of Q and Q is the mother of R, how is P related to R?
Choose your answer for question 14
Answer and explanation

Correct answer: A

P is the grandfather of R.

Question 15 · Reasoning Ability · Number Series
Which one is the correct relation? Cat is to Kitten as Dog is to ?
Choose your answer for question 15
Answer and explanation

Correct answer: C

A young dog is called a puppy.

Question 16 · Reasoning Ability · Number Series
What comes next in the series: 11, 19, 27, 35, ?
Choose your answer for question 16
Answer and explanation

Correct answer: A

Each term increases by 8, so next = 43.

Question 17 · Reasoning Ability · Number Series
If A is coded as E, B as G, C as I, what is the code for A?
Choose your answer for question 17
Answer and explanation

Correct answer: C

The sequence shifts each letter by 2 position(s).

Question 18 · Reasoning Ability · Number Series
A person walks 13 metres north, turns right and walks 8 metres. Which direction is the person from the starting point?
Choose your answer for question 18
Answer and explanation

Correct answer: C

From north and then right, the person ends up to the north-east of the starting point.

Question 19 · Reasoning Ability · Number Series
If P is the father of Q and Q is the mother of R, how is P related to R?
Choose your answer for question 19
Answer and explanation

Correct answer: D

P is the grandfather of R.

Question 20 · Reasoning Ability · Number Series
Which one is the correct relation? Cat is to Kitten as Dog is to ?
Choose your answer for question 20
Answer and explanation

Correct answer: A

A young dog is called a puppy.

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