Question

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

30	36	18
65	126	23
72	?	42

1. 60
2. 90
3. 45
4. 30

Answer 1

Correct Answer - Option 2 : 90

The logic follows here is:

In a row:

Middle number = (first number - third number) × 3

From row 1: (30 - 18) × 3 = 12 × 3 = 36

From Row 2: (65 - 23) × 3 = 42 × 3 = 126

Similarly,

From row 3: (72 - 42) × 3 = 30 × 3 = 90

Hence, ‘90’ is the correct answer.