Math, asked by pardeepramba75, 1 year ago

The sum of the first term of an Ap is 55 and sum of the first ten terms of an Ap is 235, find the sum of it first 20 terms.

Answers

Answered by SanskratiGupta
1
answer is here
1st term = 55
First ten terms = 235
first 20 terms = 55 + 235
=290
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