The average age of a class of 40 boys is 11.95 years. The average of the class is raised to 12 years by the coming of a new boy. How old is this new boy?
Correct answer D. 14 years
Tip: press A, B, C or D to answer, and N for the next question.
Advertisement
More Age Questions questions
See allThe average age of a class of 60 boys which is 11.9 years is raised to 12 years by coming of a new boy the age of the new boy is?
Correct answer C. 18 years
The average expenditure of a man for the first 7 months is Rs. 130 and for the next 5 months is Rs. 140. He withdraws a sum of Rs.110 from his bank. His average monthly earning is?
Correct answer A. Rs. 125
Advertisement
The average weight of 20 students in a class is decreased by 500 grams when one of the students who weights 40 kg is replaced by a new boy. The weight of the new boy is?
Correct answer C. 30 kg
The average age of 6 men is increased by 3 years when two of them whose ages are 25 and 27 years are replaced by two men. The average age of two newcomers is?
Correct answer D. 35 years
Discussion