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In the following question the mathematical number follow according to a pattern. Discover that pattern and then pick up the missing number from the answer choices : 2, 5, 9, 19, 37, ?

A75

B85

C87

D47

Answer:

A. 75

Read Explanation:

2 × 2 + 1 = 5 5 × 2 – 1 = 9 9 × 2 + 1 = 19 19 × 2 – 1 = 37 37 × 2 + 1 = 75


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