Mark the correct alternative in each of the following:
If A be one A.M. and p, q be two G.M.’s between two numbers, then 2 A is equal to
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]
⇒