Math, asked by calvingabriel161198, 6 months ago

find the sum of first 15 terms of the A.P 8,7¼,6½,5¾

Answers

Answered by hemendrakumar125019

0

Answer:

a= 8 and d=3/4 and n=15

Sn = n/2[2a+(n-1)d]

S15=15/2(2×8+14×3/4)

=15/2((32+21) /2)

=15/2(53/2)

=795/4

=198.75 or 198 3/4

Step-by-step explanation:

I hope that it will be helpful for you

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