If 1/5 : 1/N = 1/N : 1/1.25, then the value of N is?

Question

Accepted Answer

Given 1/5 : 1/N = 1/N : 1/1.25 ⇒ 1/5 x 1/1.25 = 1/N x 1/N ⇒ N2 = 5 x 1.25 = 6.25 ∴ N = 2.5

Discussion & Comments