Math, asked by gummybear17, 1 year ago

sum of first 11 positive numbers which are divisible by 6

Answers

Answered by kunal0912

2

AP for such nos. is 6,12,18,.............66

so, a = 6 ,d = 6 , n = 11

so, S = 11/2[6+66] = 11[36] = 396

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