A bus travels a distance of 840 km at a uniform speed. If the speed of the car is 10 km/hr more, then it takes 2 hours less to cover the same distance. The original speed of the car was:(HSBC COMPANY)

A bus travels a distance of 840 km at a uniform speed. If the speed of

1.	A bus travels a distance of 840 km at a uniform speed. If the speed of the car is 10 km/hr more, then it takes 2 hours less to cover the same distance. The original speed of the car was:(HSBC COMPANY)
A.	50 km/hr
B.	45 km/hr
C.	75 km/hr
D.	60 km/hr
Answer» E.