If in an A.P., first term is 9 and common difference is -3 then sum of its first 12 terms is –

If in an A.P., first term is 9 and common difference is -3 then sum of its first 12 terms is –

(A) 78

(B) 90

(C) -90

(D) -78

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

Correct answer is (C) -90

5 views Answered 2023-02-05 15:29

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