A ratio of the ages of Mother and son at present is 3:1. After 5 years the ratio will become 5:2. The present age of the son is?A15 yearsB18 yearsC19 yearsD23 yearsAnswer: A. 15 yearsRead Explanation:The present age be 3x and 1x. After 5 years their ages be 3x + 5 and 1x + 5 (3x+ 5)/(x+5)=5/2 6x + 10 = 5x + 25 x = 15 Age of son is 15 yearsOpen explanation in App