Question

The nth term of 50, 80, 110 is...

Answer 1

`a_n=50+(n-1)30`

Explanation:

Given series is,

50,80,110....

First term, a = 50

Common difference, d = 80-50 = 30

We need to find the nth term of the given sequence.

The nth term of an AP is given by :

`a_n=a+(n-1)d`

Put a = 50 and d = 30 in the above formula

`a_n=50+(n-1)30`

Hence, the nth term of the sequence is
`a_n=50+(n-1)30`.