Question

Find the missing number in the series: 2, 5, __ , 19 , 37, 75.

• A. 9
• B. 10
• C. 11
• D. 12

Answer 1

Answer:

A. 9

The pattern followed is: (2 × 2) + 1 = 4 + 1 = 5 (5 × 2) – 1 = 10 – 1 = 9 (9 × 2) + 1 = 18 + 1 = 19 (19 × 2) – 1 = 38 – 1 = 37 (37 × 2) + 1 = 74 + 1 = 75