Math, asked by biswajit4480, 11 months ago

How many terms of the ap 3, 6, 9, 12, 15 must be taken to make the sum 108?

Answers

Answered by viperyash

9

a+(n-1)d=108

3+(n-1)3=108

3+3n-3=108

3n=108

n=108÷3

n=36

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