Math, asked by snehasonvane76, 9 days ago

If first term of an A.P. is 3 and 6th term is 27 then find the sum of first six terms

Answers

Answered by rigu2925

0

Answer:

90

Step-by-step explanation:

a=3

a+5d = 27

d= 24/5

Sn=6/2(2(3)+(6-1)24/5

Sn=3(6+5×24/5)

Sn=3×30

Sn=90

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