Math, asked by yashwanthprince27, 10 months ago

find the 25th term of an ap whose 3rd term is 8 and 7th term is 20​

Answers

Answered by sarthak4487
0

Answer:

A 25 = 86

Step-by-step explanation:

Answered by deonjose2014
2

Answer:

a3=8,

a+2d=8-----(1)

a7=20,

a+6d=20----(2)

(2)-(1)

4d=12

d=3---(3)

substitute (3) in (1)

a+6=8

a=2

so 25th term that is

a+24d=a25

2+24*3=74

hence 25th term is 74.....

hope it helps u

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Step-by-step explanation:

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