Question

Find the 6th term from the end of the AP : 17,14,11,...(-40)

Answer 1

Number series : ..., 17, 14, 11 .... -40

Find the common difference:

Difference = a2 - a1 = 14 - 17 = -3

Therefore, going backwards, the difference would be 3

Find the 6th term from the end

Last term: -40

6th term from the end = -40 + 3(6 - 1) = - 25

Therefore, 6th term is -25.