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Q: Six years ago, the average of the ages of Ravi, Mohan and Govind was 32 years. If Shyam joins them now, the average of the ages of all four of them is 36 years. The present age of Shyam is:
  • A. 32 years
  • B. 35 years
  • C. 30 years
  • D. 40 years
Correct Answer: Option C - Total sum of age of Ravi, Mohan and Govind at present = (32×3)+(6×3) = 96 + 18 = 114 years Total ages of all four of them • 36 × 4 = 144 years Hence, Present age of Shyam= 144 – 114 = 30 years
C. Total sum of age of Ravi, Mohan and Govind at present = (32×3)+(6×3) = 96 + 18 = 114 years Total ages of all four of them • 36 × 4 = 144 years Hence, Present age of Shyam= 144 – 114 = 30 years

Explanations:

Total sum of age of Ravi, Mohan and Govind at present = (32×3)+(6×3) = 96 + 18 = 114 years Total ages of all four of them • 36 × 4 = 144 years Hence, Present age of Shyam= 144 – 114 = 30 years