Question

The swimming pool is open 7 1/2 hours a day. One lifeguard is on duty at a time, each working a 1 1/2 hour shift. How many lifeguards are needed per day?

Answer 1

Hello! You'r answer would be 5. I got this answer because by dividing 7 1/2, 1 1/2 is how much a lifeguard works. So 5 lifeguards is equal to 7 1/2.

hope this helps!