A submarine left Diego Garcia and traveledtoward St. Vincent. Three hours later acruise ship left traveling at 16 km/h in aneffort to catch up to the submarine. Aftertraveling for five hours the cruise shipfinally caught up. What was the submarine's average speed

Respuesta :

Average speed of submarine is 10 km/h

Given information;

Cruise ship left after 3 hours

Speed of cruise ship = 16 km / hour

Time taken by cruise ship = 5 hours

Find:

Average speed of submarine

Computation:

Distance = speed × time

Distance cover by cruise ship = 16 × 5

Distance cover by cruise ship = 80 km

So,

Distance cover by submarine also 80 km

So,

Time taken by submarine = 5 + 3

Time taken by submarine = 8 km

Average speed of submarine = 80 / 8

Average speed of submarine = 10 km/h

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