Find the missing number from the given options.
| 17 | 22 | 37 |
| 23 | 28 | 43 |
| 16 | ? | 36 |
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 21
The first two rows show the rule: in each row the second number is 5 more than the first, and the third is 15 more than the second.
Row 1: \(17+5=22\), \(22+15=37\)
Row 2: \(23+5=28\), \(28+15=43\)
Row 3: \(16+5=21\), and \(21+15=36\) agrees with the last number, so the missing number is 21