चार वर्ष पहले, राजेश की आयु नरेश की आयु की तीन गुनी थी। चार वर्ष बाद उसकी आयु नरेश की उस समय की आयु की दोगुनी होगी। राजेश की वर्तमान आयु (वर्षों में) कितनी है?

At the time of marriage, a man was 6 years older than his wife. 12 years after the marriage, his age became 65 times the age of his wife. What were their ages (in years) at the time of marriage?

The total age of father and son at present is 40 years. After 16 years, the age of the father will be twice the age of his son. What is the present age of the son?