Multiple choice

The average age of a man and his son is 45 years. The ratio of their age is 2 : 1 respectively. What is the son's age? एक व्यक्ति और उसके पुत्र की औसत आयु 45 वर्ष है और उनकी आयु का अनुपात क्रमशः 2 : 1 है, तो पुत्र की आयु क्या है?

  1. 20 years 20 वर्ष

  2. 25 years 25 वर्ष

  3. 30 years 30 वर्ष

  4. 35 years 35 वर्ष

  5. None of these इनमें से कोई नहीं
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Let man's age be 2x and son's age be x. Average is (2x + x)/2 = 45, so 3x = 90, giving x = 30. The son's age is x = 30 years. Checking: Man is 60, son is 30, average is 45, ratio is 2:1.

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