JEE MATHEMATICS MCQ: SEQUENCE OF SERIES

1 Easy

1 of 1

Application +4 | -1

Let

a_1, a_2, a_3, \ldots, a_n \ldots

be an A.P. whose common difference is an integer and

S_{n}

denote the sum of its

n

terms. If

a_1=1, a_n=300

and

15 \leq n \leq 50

, then the ordered pair

\left(S_{n-4}, a_{n-4}\right)

is equal to

View answer and explanation

Correct option: A

(2490,248)

Option A (2490, 248) is correct because it is derived from finding the common difference and then calculating

S_{n-4}

and

a_{n-4}

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