What is the sum of the first 17 terms of an arithmetic progression if the first term is -20 and last term is 28? - Study24x7
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3608 followers study24x7 08 Jul 2020 12:49 PM study24x7 study24x7

What is the sum of the first 17 terms of an arithmetic progression if the first term is -20 and last term is 28?

A

68

B

156

C

142

D

242

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