Math, asked by khush29861, 10 months ago

What is the sum of the first 12 terms of an arithmetic progression if the first term is -19 and last term is 36?

A) 192 B) 230 C) 102 D) 214

Answers

Answered by deepakapril1981

0

Answer:

We know that

Sn = n/2 [ a + l ]

Sn = 12/2 [ 36 - 19 ]

Sn = 6[17]

Sn = 102

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