Math, asked by venkymuppana, 1 year ago

17,22,27,32,..... the sum of first 20 terms in the series.?

Answers

Answered by rathilakshit

12

Answer:

a=17 d=5 n=20

.

.

sn =n/2(2a+(n-1)d)

=10(34+95)

=10(129)

=1290

Answered by mohit9899

2

Answer:

1409 is the sum of first 20 terms

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