Math, asked by priyanka10th, 11 months ago

find the sum of 15terms of the A.p 8,7 1/4,6 1/2, 5 3/4........

Answers

Answered by ruchijain3112

3

Answer:

a=8

d=3/4. n=15

sum=15/2(16+14*3/4)

sum=15/2(53/2)

sum =198.75

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