Question

the sixth term of an AP is 35 and 13th term is 77.find the 20th term.

Answer 1

note that a13-a6 = 7d = 77-35 = 42
a20 = a13 + 7d = 77 + 42

Answer 2

The 6th term of an A.P is 35 and the 13th term is 77. Find the 20th term.

Answer 3

Question an answer

Answer 4

What's the answer

Answer 5

I don't know the answer