If Ron walks 1/2 mile in a quarter of an hour and Maria walks 1/3 mile in the same time period, how many miles have Ron and Maria walked in 3 hours?
A) 1 1/3 miles
B) 4 miles
C) 6 miles
D) 10 miles (Correct Answer)
Explanation:
If Ron walks 1/2 mile in a quarter of an hour he can walk 2 miles in an hour.
If Maria walks 1/3 mile in a quarter of an hour, she can walk 1 1/3 miles in an hour.
In 3 hours Ron will have walked 2 x 3 = 6 miles. Maria will have walked 1 1/3 x 3 = 4 miles. 6 + 4 = 10 miles
Related Common Core State Standard: Statistics & Probability: 7.RP.1
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