If a person has to drive 210 km, how long will the journey take if he drives at an average speed of 20 km/hr for 120 km and at an average speed of 30 km/hr for 90 km, and have a 60 minutes stop for refreshments midway through the journey?

If a person has to drive 210 km, how long will the journey take if he

1.	If a person has to drive 210 km, how long will the journey take if he drives at an average speed of 20 km/hr for 120 km and at an average speed of 30 km/hr for 90 km, and have a 60 minutes stop for refreshments midway through the journey?
A.	7 hours
B.	8 hours
C.	9 hours
D.	10 hours
Answer» E.

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If a person has to drive 210 km, how long will the journey take if he drives at an average speed of 20 km/hr for 120 km and at an average speed of 30 km/hr for 90 km, and have a 60 minutes stop for refreshments midway through the journey?

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