A motorcyclist left \(6\frac{6}{9}\) minutes later than the scheduled time but in order to reach its destination 21 km away in time, he had to increase his speed by 12 kh/hr form the usual speed. What is usual speed (in km/hr) of the motorcyclist?

A motorcyclist left \(6\frac{6}{9}\) minutes later than the scheduled

1.	A motorcyclist left \(6\frac{6}{9}\) minutes later than the scheduled time but in order to reach its destination 21 km away in time, he had to increase his speed by 12 kh/hr form the usual speed. What is usual speed (in km/hr) of the motorcyclist?
A.	28
B.	35
C.	42
D.	64
Answer» D. 64

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A motorcyclist left \(6\frac{6}{9}\) minutes later than the scheduled time but in order to reach its destination 21 km away in time, he had to increase his speed by 12 kh/hr form the usual speed. What is usual speed (in km/hr) of the motorcyclist?

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