Three years ago, the average age of the husband, wife, and child was 27 years, and five years ago, the average age of the wife and child was 20 years. The husband's current age is:
A. 35 years
B. 40 years
C. 50 years
D. None of these
Answer:B
Three years ago, the average age of the husband, wife, and child was 27 years, and five years ago, the average age of the wife and child was 20 years. The husband's current age is:
A. 35 years B. 40 years C. 50 years D. None of these
Explanation: The sum of the current ages of the husband, wife, and child is 90 years (27 x 3 + 3 x 3).The current ages of the wife and child add up to 50 years (20 x 2 + 5 x 2) years.The current age of the husband is (90 - 50) years = 40 years.