Question Details

If a1 = 12×5, a2 = 15×8, a3 = 18×11, ..., then a1 + a2 + a3 + ... + a100 is

Options

A

25/151

B

1/2

C

1/4

D

111/55

Show Answer

Correct Answer :

Option A

25/151

Solution :

Correct Option: A

All the terms like 1/5, 1/8,……..1/299 will cancel out.

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