Question

how many terms are there in th AP 10,13,16,....,43?

Answer 1

There are 12 terms in this AP.

Answer 2

an=a+(n-1)d here- a=10, d=13-10=3, an=43 we have to find value of n. 43=10+(n-1)3 43-10=(n-1)3 33=(n-1)3 n-1=33/3 n-1=11 n=11+1=12 Therefore, there are 12 terms in this AP