Q443
The driver of a car, which is travelling at a speed of 75 km/hr locates a bus 80 m ahead of him, travelling in the same direction. After 15 seconds, he finds the bus is 40 m behind the car. What is the speed of the bus (in km/hr)?
A.
42.5
B.
46.2
AnswerC.
44.2
D.
47.5
Answer: Option B
Solution
Answer: Option B
Solution:
Let speed of the bus = xRelative speed in same direction = 75 - x
Total distance = 80 + 40 = 120 m