1) The average age of husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. The present age of the husband is : A) 35 years B) 40 years C) 50 years D) None of these Answer: Option BExplanation:Sum of the present ages of husband ,wife and child =27x3+3x3 years = 90 years Sum of the present ages of wife and child =20x2+5x2 years = 50 yearsTherefore husband's present age = 90-50 years = 40 years
