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Identify the next number in the series : 2 , 7 , 17 , 32 , 52 , 77 , ?

A107

B91

C101

D92

Answer:

A. 107

Read Explanation:

7 = 2+ 5 × 1 17 = 7+ 5× 2 32 = 17 + 5 × 3 52 = 32 + 5 x 4 77 = 52 + 5 × 5 77 + 5 × 6 = 107


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