Question

Sam is paid $50 per room that he paint and he paint room in exactly two hours on sunday sam hopes to make at least $150 painting rooms and can work for exactly 10 hours which of the following sets represents the range of hours H that Sam can work without violating his monetary or restriction

Answer 1

Since Sam can paint 5 rooms in 10 hours, since:

$\frac{10\text{hours}}{2\text{hours}}=5\text{ rooms}$

then Sam would have to paint at least 3 rooms to make $150.

The range of hours would be from 6 to 10 hours, since 3 rooms takes 6 hours to paint.