Question

In the following APs, find the missing term in the box:

2, `square`, 26

Answer 1

2, 14, 26

Explanation:

For this A.P.,

a = 2

a₃ = 26

We know that, a_n = a + (n − 1) d

a₃ = 2 + (3 − 1) d

26 = 2 + 2d

24 = 2d

d = 12

a₂ = 2 + (2 − 1) 12

= 14

Therefore, 14 is the missing term.