Time and Distance: Problem Two

[beshtesh]

Can anyone solve this problem for me?

The driver of a car driving at the speed of 68 Km/hr locates a bus 40 metres ahead of him. After 10 seconds, the bus is 60 metres behind. The speed of the bus is:

A. 30 km/hr

B. 32 km/hr

C. 25 km/hr

D. 38 km/hr

E. 6.8 km/hr

[boatracers]

i haven't done these in a while, but i believe it should be "b"

Paul
[email protected]
www.EssayMatch.com

[gergely]

speed is a distance covered over a period of time. here, the speed difference between car and bus is 40+60=100m per 10 seconds. that is 600m per minute, or 36,000m per hour, ie 36km/h. so the speed of the bus is 68-36=32km/h and B should be the correct answer

Gergely