Math, asked by syedumar0005, 10 months ago

the sum of 15 term is AP is 4 ,7 ,10

a) 385
b ) 475
ç) 375
d) 325
please answer this

Answers

Answered by raih8583

1

n=15

a=4

d=7-4=3

S15=n/2(2a+(n-1)d)

S15=15/2(2*4+(15-1)3)

S15=15/2(8+42)

S15=15/2*50

S15=25*15

S15=375 Ans

plz give me Brainliest

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