Question

If A be one A.M. and p, q be two G.M.’s between two numbers, then 2 A is equal to

A. p³+q³/pq

B. p³ - q³/pq

C. p²+q²/2

D. pq/2

Answer 1

Let the numbers be x,y.

x,A,y = 2A = x+y

x,p,q,y = p² = xq ; q² = py [a,b,c GM = b² = ac]