Question

the first term of an AP is 11 and the 12th term is 99. find the 7th term

Answer 1

Answer:

59

Step-by-step explanation:

Using nth term formula

a12= a + 11 d

a=11,a12 =99, d=?

99= 11 + 11d

11d = 88

d= 8

7th term , a7 = a + 6d

= 11 + 6×8

=59