JEE MATHEMATICS MCQ: SEQUENCE OF SERIES

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Let

2^{\text {nd }}, 8^{\text {th }}

and

44^{\text {th }}

terms of a non-constant A.P. be respectively the

1^{\text {st }}, 2^{\text {nd }}

and

3^{\text {rd }}

terms of a G.P. If the first term of the A.P. is 1 , then the sum of its first 20 terms is equal to

View answer and explanation

Correct option: D

970

Option D (970) is correct because the sum of the first 20 terms of the A.P. is calculated correctly using the given conditions.

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