Question

check whether 328 is a a term in the following AP 76 97 118 and 139​

Answer 1

Answer:

Step-by-step explanation:

The given AP is 76,97,118,139,...

Let the nth term is 328.

First term= a= 76

common difference=d =97-76=21

So nth term=a+(n-1)d

=> 328=76+(n-1)×21

=> 21(n-1)=328-76=252

=> (n-1)=252/21

=> n-1=12

=> n=12+1

=> n=13

So the 13th term of the AP is 328.

Hope you got it.