Question

A carpenter makes a new table in 5 days, working 6 hours a day. In order to make the same table in 3 days, how many hours per day must he work?

• A. 8
• B. 9
• C. 11
• D. 10

Answer 1

The correct option is D

10

Suppose the required working hours be x.

More working hours means fewer days will be taken in completing the task.

This is inverse variation.

$\frac{5}{3}$ = $\frac{x}{6}$

x = $\frac{5\times 6}{3}$ = 10 hours per day