Question

How many terms are there in the ap 17 13 151 ?

Answer 1

Answer:

Given that: a=7,d=T

2

−T=1=13−7=6

Let the number of terms be n. So T

n =151

T =a+(n−1)d

151=7+(n−1)6=7+6n−6

151=1+6n

∴150=6n

n= 6

150=25

∴n=25