NUMBER PUZZLE (General Mental Ability) UPSC EPFO

Total Questions: 30

1. Answer the following question

Correct Answer: (d) 1097
Solution:

2 × 8 + 1 = 17
17 × 8 + 1 = 137
137 × 8 + 1 = 1097

2. Answer the following question

Correct Answer: (d) 100
Solution:

3. Answer the following question

Correct Answer: (b) 33
Solution:

4. Answer the following question

Correct Answer: (c) 10
Solution:

5. Answer the following question

Correct Answer: (d) 58
Solution:

6. In the following question, select the number which can be placed at the sign of question mark (?) from the given alternatives.

Correct Answer: (a) 11
Solution:

In first figure: 6 × 5 + 7 × 9 = 93
In second figure: 6 × 5 + 7 × 5 = 65
In third figure: 11 × 3 + 6 × 5 = 63

7. In the following question, select the number which can be placed at the sign of question mark (?) from the given alternatives.

Correct Answer: (c) 156
Solution:

(2 + 3) × 4 = 20
(3 + 6) × 8 = 72
(3 + 7) × 9 = 90
(7 + 6) × 12 = 156

8. Select the missing number from the given responses

Correct Answer: (b) 23
Solution:

In Ist row:
134 – 100 = 34
and in IInd row:
117 – 31 = 86
Similarly, in IIIrd row:
87 – 64 = 23

9. In the following question, select the number which can be placed at the sign of question mark (?) from the given alternatives.

Correct Answer: (c) 22
Solution:

In figure I:
7 + 4 + 3 + 2 = 16
In figure II:
7 + 5 + 6 + 1 = 19
In figure III:
3 + 8 + 4 + 7 = 22

10. In the following question, select the number which can be placed at the sign of question mark (?) from the given alternatives.

Correct Answer: (b) 95
Solution: