How long must a driver take to drive the final 70 miles of a trip if he wants to average 50 miles an hour for the entire trip and during the first part of the trip he drove 50 miles in$$1\frac{1}{2}$$ hours ?

How long must a driver take to drive the final 70 miles of a trip if h

1.	How long must a driver take to drive the final 70 miles of a trip if he wants to average 50 miles an hour for the entire trip and during the first part of the trip he drove 50 miles in$$1\frac{1}{2}$$ hours ?
A.	4 min
B.	hr
C.	6 min
D.	0 min
Answer» B. hr

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How long must a driver take to drive the final 70 miles of a trip if he wants to average 50 miles an hour for the entire trip and during the first part of the trip he drove 50 miles in$$1\frac{1}{2}$$ hours ?

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