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4 votes
. He rowed 3 1/2 miles in 1/2 hour.What is the average speed in miles per hour.

User Eugene Mala
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1 Answer

20 votes
20 votes

Answer:

7 miles per hour

Explanation:

3 1/2 miles = 7/2 miles

1/2 hours= 30 minutes

So,

In 30 mins, travelled 7/2 miles

In 1 min, travelled 7/2 ÷ 30= 7/2× 1/30 = (7×1)/(2×30) = 7/60 miles

In 60 mins, travelled (7×60)/60 miles = 420/60 miles = 7 miles.

Hence, the speed is 7 miles per hour.

Hope this helps :)

User Plinth
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