RRB NTPC · Question 11
Insert the missing character depicted by ‘?’
| 18 | 24 | 32 |
|---|---|---|
| 12 | 14 | 16 |
| 3 | ? | 4 |
| 72 | 112 | 128 |
A. 2 B. 3 C. 4 D. 5
Show answer & explanation
Answer: (A) B
Explanation
In each column the bottom number = (first × second) ÷ third: 18 × 12 ÷ 3 = 72 and 32 × 16 ÷ 4 = 128. For the middle column 24 × 14 ÷ ? = 112, so ? = 336/112 = 3.