A biker rode 45 miles in 180 minutes. What ws his speed (mph) during this ride ?

A 17 mph
B 15 mph
C 12mph
D 9 mph

Correct Answer: 15 mph

We know, 60 minutes = 1 hour Or, 1 minutes = 1/60 hour Or, 180 minutes = 180/60 hour = 3 hours Here, Times (t) = 3 hours; Distance (s) = 45 miles And Velocity (v) = ? Mph Again, we know that, S = vt = > v = s/t = > v = (45÷3) mph = > v = 15 mph
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