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Q: In a family, the average age of a father and a mother is 35 years. The average age of the father, mother and their only son is 27 years. What is the age of the son?
  • A. 10 years/10 वर्ष
  • B. 12 years/12 वर्ष
  • C. 15 years/15 वर्ष
  • D. 11 years/11 वर्ष
Correct Answer: Option D - पिता + माता= 2 × 35 = 70 पिता + माता + बेटा = 3 × 27 = 81 बेटे की आयु = 81 – 70 = 11 वर्ष
D. पिता + माता= 2 × 35 = 70 पिता + माता + बेटा = 3 × 27 = 81 बेटे की आयु = 81 – 70 = 11 वर्ष

Explanations:

पिता + माता= 2 × 35 = 70 पिता + माता + बेटा = 3 × 27 = 81 बेटे की आयु = 81 – 70 = 11 वर्ष