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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 · Mathematical Operations
If “+” means “−” and “−” means “+”, then 15 + 5 − 3 = ?
Choose your answer for question 1
Answer and explanation

Correct answer: D

After substituting the signs, the expression is 15 − 5 + 3 = 13.

Question 2 · Reasoning Ability · Mathematical Operations
Find the missing number: 2 → 6, 3 → 12, 4 → 20, 5 → ?
Choose your answer for question 2
Answer and explanation

Correct answer: D

The rule is n × (n + 1): 2×3, 3×4, 4×5, so 5×6 = 30.

Question 3 · Reasoning Ability · Mathematical Operations
If 3 ⊕ 4 = 25 and 5 ⊕ 12 = 169, then 8 ⊕ 15 = ?
Choose your answer for question 3
Answer and explanation

Correct answer: D

The rule is a² + b²: 3² + 4² = 25 and 5² + 12² = 169. So 8² + 15² = 64 + 225 = 289.

Question 4 · Reasoning Ability · Mathematical Operations
Arrange in a meaningful order: 1. Seed 2. Plant 3. Fruit 4. Flower 5. Tree
Choose your answer for question 4
Answer and explanation

Correct answer: C

The natural sequence is seed → plant → tree → flower → fruit.

Question 5 · Reasoning Ability · Mathematical Operations
In a group of 50 people, 26 like tea, 24 like coffee and 3 like both. The number of people who like neither is
Choose your answer for question 5
Answer and explanation

Correct answer: A

Likes at least one = 26 + 24 − 3 = 47. Neither = 50 − 47 = 3.

Question 6 · Reasoning Ability · Mathematical Operations
In a group of 138 people, 83 like tea, 48 like coffee and 18 like both. The number of people who like neither is
Choose your answer for question 6
Answer and explanation

Correct answer: B

Likes at least one = 83 + 48 − 18 = 113. Neither = 138 − 113 = 25.

Question 7 · Reasoning Ability · Mathematical Operations
If “+” means “−” and “−” means “÷” and “×” means “+” and “÷” means “×”, then 18 ÷ 6 − 2 = ?
Choose your answer for question 7
Answer and explanation

Correct answer: B

Replace each sign by what it means: 18 × 6 ÷ 2. Using BODMAS this equals 54.

Question 8 · Reasoning Ability · Mathematical Operations
A father is 3 times as old as his son. After 10 years the sum of their ages will be 100. The present age of the son is
Choose your answer for question 8
Answer and explanation

Correct answer: D

Let the son be x. Father = 3x. (x + 10) + (3x + 10) = 100, so 4x = 80, giving x = 20.

Question 9 · Reasoning Ability · Mathematical Operations
A father is 2 times as old as his son. After 7 years the sum of their ages will be 35. The present age of the son is
Choose your answer for question 9
Answer and explanation

Correct answer: A

Let the son be x. Father = 2x. (x + 7) + (2x + 7) = 35, so 3x = 21, giving x = 7.

Question 10 · Reasoning Ability · Mathematical Operations
In a group of 65 people, 25 like tea, 30 like coffee and 24 like both. The number of people who like neither is
Choose your answer for question 10
Answer and explanation

Correct answer: A

Likes at least one = 25 + 30 − 24 = 31. Neither = 65 − 31 = 34.

Question 11 · Reasoning Ability · Mathematical Operations
In a group of 101 people, 57 like tea, 46 like coffee and 26 like both. The number of people who like neither is
Choose your answer for question 11
Answer and explanation

Correct answer: D

Likes at least one = 57 + 46 − 26 = 77. Neither = 101 − 77 = 24.

Question 12 · Reasoning Ability · Mathematical Operations
If “+” means “−” and “−” means “×” and “×” means “+”, then 14 × 11 − 8 = ?
Choose your answer for question 12
Answer and explanation

Correct answer: B

Replace each sign by what it means: 14 + 11 × 8. Using BODMAS this equals 102.

Question 13 · Reasoning Ability · Mathematical Operations
A father is 4 times as old as his son. After 8 years the sum of their ages will be 91. The present age of the son is
Choose your answer for question 13
Answer and explanation

Correct answer: D

Let the son be x. Father = 4x. (x + 8) + (4x + 8) = 91, so 5x = 75, giving x = 15.

Question 14 · Reasoning Ability · Mathematical Operations
A father is 4 times as old as his son. After 6 years the sum of their ages will be 87. The present age of the son is
Choose your answer for question 14
Answer and explanation

Correct answer: C

Let the son be x. Father = 4x. (x + 6) + (4x + 6) = 87, so 5x = 75, giving x = 15.

Question 15 · Reasoning Ability · Mathematical Operations
A father is 4 times as old as his son. After 10 years the sum of their ages will be 50. The present age of the son is
Choose your answer for question 15
Answer and explanation

Correct answer: D

Let the son be x. Father = 4x. (x + 10) + (4x + 10) = 50, so 5x = 30, giving x = 6.

Question 16 · Reasoning Ability · Mathematical Operations
In a group of 96 people, 34 like tea, 58 like coffee and 14 like both. The number of people who like neither is
Choose your answer for question 16
Answer and explanation

Correct answer: A

Likes at least one = 34 + 58 − 14 = 78. Neither = 96 − 78 = 18.

Question 17 · Reasoning Ability · Mathematical Operations
Find the missing number: (6, 5, 27), (5, 12, 46), (12, 4, ?)
Choose your answer for question 17
Answer and explanation

Correct answer: A

The rule is 2 × first + 3 × second. Applying it: 36.

Question 18 · Reasoning Ability · Mathematical Operations
A father is 3 times as old as his son. After 5 years the sum of their ages will be 90. The present age of the son is
Choose your answer for question 18
Answer and explanation

Correct answer: C

Let the son be x. Father = 3x. (x + 5) + (3x + 5) = 90, so 4x = 80, giving x = 20.

Question 19 · Reasoning Ability · Mathematical Operations
In a group of 49 people, 38 like tea, 15 like coffee and 12 like both. The number of people who like neither is
Choose your answer for question 19
Answer and explanation

Correct answer: C

Likes at least one = 38 + 15 − 12 = 41. Neither = 49 − 41 = 8.

Question 20 · Reasoning Ability · Mathematical Operations
If “−” means “×” and “×” means “÷” and “÷” means “−”, then 17 ÷ 8 ÷ 8 = ?
Choose your answer for question 20
Answer and explanation

Correct answer: B

Replace each sign by what it means: 17 − 8 − 8. Using BODMAS this equals 1.

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