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A typical marathon is 26.2 miles. Allan averages 12 kilometers per 1 hour when running in marathons. How long does it take for Allan to complete a marathon, to the nearest tenth of an hour.

User Dequin
by
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1 Answer

4 votes

Answer:

3.5 hours

Explanation:

Given: Distance= 26.2 miles

Speed= 12 km/h

First lets convert the unit of speed from kmh to mph.

Remember, 1 mile= 1.609 km

∴ For speed of 12 km/h=
(12)/(1.609)= 7.45\ mph

Speed= 7.45 mph

Next, find time taken by Allan to complete a Marathon.


Time= (Distance)/(speed)

⇒ Time=
(26.2)/(7.45)

∴ Time= 3.516 hours ≅ 3.5 h (nearest tenth)

Allan took 3.5 hours to complete marathon.

User Clone
by
8.2k points
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