Question

How Many terms are there in AP 5,8,11.....149?

Options
A) 49 B)39 C)42 D)32

Answer 1

149 = 5 + (n-1) 3

144 /3 + 1 = n

48 + 1 = n

49

Answer 2

option A is the correct option mate .
Here a=5
d=8-5=3
an=149
n=?
formula = a +(n-1)d=an
5+(n-1)*3=149
(n-1)*3=149-5
n-1=144/3
n=48+1
n=49
There fore there are 49 terms .
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