A fish almost ran into a submarine and turned around. The fish and the submarine are moving in opposite directions. If the fish is swimming 70 miles per hour and the submarine is moving 50 miles per hour. How long will it take before the fish and the submarine are 15 miles apart?

Question

A fish almost ran into a submarine and turned around. The fish and the submarine are moving in opposite directions. If the fish is swimming 70 miles per hour and the submarine is moving 50 miles per hour.  How long will it take before the fish and the submarine are 15 miles apart?

oobleck · Answer

time = distance/speed so, 15/(70+50) = 1/8 hour