Question

An aircraft carrier made a trip to Guam and back.The trip there took three hours and the trip back took four hours.It averaged 6 km/h on the return trip.Find the average speed of the trip there.

Answer 1

Distance = speed x time

Distance (From departure point TO..Guam) = speed x 3 h
Distance (FROM Guam to departure point) = 6 km/h x 4h = 24 km
But Distance (From TO) = Distance (TO From) = same, then

Speed x 3 = 6 x 4 → Speed x 3 = 24 and Speed = 24/3 = 8 km/h