If the sum of the series 20+19 3 5 +19 1 5 +18 4 5 + upto n^ th term is 488 and the n^ th term is negative,...

Question

If the sum of the series 20+19 3 5 +19 1 5 +18 4 5 + upto n^ th term is 488 and the n^ th term is negative, then-

Accepted Answer

(C)

JEE Main 2020 Mathematics question