What is the sum of the first 9 terms of an arithmetic progression if the first term is 7 and last term is 55? - Study24x7
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3608 followers study24x7 05 Aug 2020 12:28 PM study24x7 study24x7

What is the sum of the first 9 terms of an arithmetic progression if the first term is 7 and last term is 55?

A

219

B

137

C

231

D

279

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