Two search-and-rescue teams leave base camp at the same time, looking for a lost child. The first team, on horseback, heads north at 2 mph, and the other team, on foot, heads south at 1 mph. How long will it take them to search a distance of 9 miles between them?
A) 5.5 hours
B) 3 hours
C) 4 hours
D) 3.5 hours
E) 4.5 hours

Question

Quizplus · Accepted Answer

The teams are moving apart at a combined speed of 3 mph (2 mph north + 1 mph south). To cover a distance of 9 miles at 3 mph, it will take 3 hours.

Two Search-And-Rescue Teams Leave Base Camp at the Same Time