Question

find the ap whose 11 term is 74 & 25 term 136​

Answer 1

Step-by-step explanation:

a11=74

a+10d=74----------(1)

a25=136

a+24d=136----------(2)

subtracting 1 from 2, we get

d=4.4 and a= 30

ap are a=40,a+d=30+4.4=34.4,a+2d=30+8.8=38.8

hence 30,34.4,38.8