Question

The first term of an arithmetic sequences 6 and the sum of the first 6 terms is 66.What is its 6th term?

Answer 1

the first term of AP=6

sum of first sixth term=66

sum of n term = n/2×(a+l)

6/2(6+sixth term)=66

6+sixth term= 66/3

6+sixth term=22

sixth term=22-6

sixth term =16