A man can rewire a house in 12 hours and can panel a room in 15 hours,and his teenage son can rewire a house in 18 hours and can panel a room in 16 hours.Who is more efficient in rewiring a house,and who is more efficient in paneling a room?

Question

Quizplus · Accepted Answer

To determine who is more efficient, we need to calculate their respective rates of work.

The father can rewire a house in 12 hours, which means he can do 1/12 of the job in 1 hour. His son can rewire a house in 18 hours, which means he can do 1/18 of the job in 1 hour. Obviously, the father is more efficient at rewiring a house because he can do the job in fewer hours.

Similarly, the father can panel a room in 15 hours, which means he can do 1/15 of the job in 1 hour. His son can panel a room in 16 hours, which means he can do 1/16 of the job in 1 hour. In this case, the son is more efficient at paneling a room because he can do the job in fewer hours.

Therefore, the best answer is B: The father is more efficient at rewiring a house, and the son is more efficient at paneling a room.

A Man Can Rewire a House in 12 Hours and Can