Multiple choice

The mother's age is six times her son's age. Four years hence the age of the mother will be four times her son's age. What is the present age of the son? मां की आयु उसके पुत्र की आयु की 6 गुनी है। अब से 4 वर्ष बाद, मां की आयु उसके पुत्र की आयु की चार गुनी होगी। पुत्र की वर्तमान आयु क्या है?

  1. 3 years/वर्ष

  2. 4 years/वर्ष

  3. 5 years/वर्ष

  4. 6 years/वर्ष

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Let the son's present age be x years. Then mother's age is 6x years. After 4 years: 6x+4 = 4(x+4). Solving: 6x+4 = 4x+16, so 2x = 12 and x = 6. The son is 6 years old.