Jerry left for camp on a bus that was traveling 30 mph.

Question

Jerry left for camp on a bus that was traveling 30 mph. One half hour after the bus had left, his mother found something he had forgotten. She drove after the bus and caught up with it in 3 hours. How fast was she driving?

Answer 1

Hi chidimma,

The distance the bus travelled before the mom caught up with it is 105 miles. (It traveled for 3.5 hours at 30 miles per hour).

the mom covered the same distance in 3 hours.

speed = distance / time = 105 / 3 = 35 miles / hour