If 15% of A is equal to 20% of B, then 25% of A is equal

If 15% of A is equal to 20% of B, then 25% of A is equal to what per cent of B ?

Given, P = 15, Q = 20 and R = 25
According to the formula
R% of A = [(QR)/P]% of B
25% of A = (20 x 25)/15 % of B
= 100/3 % of B
= 33¹/₃ % of B