Ritesh drove his car at a speed of 60 km/h for 8 hours. For how many h – McqOptions

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1.	Ritesh drove his car at a speed of 60 km/h for 8 hours. For how many hours should he now drive at a speed of 80 km/h so that the overall average speed becomes 72 km/h?
A.	8
B.	12
C.	10
D.	15
Answer» C. 10

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