Question : A bus starts running with an initial speed of 33 km/hr and its speed increases every hour by a certain amount. If it takes 7 hours to cover a distance of 315 km, what will be the hourly increment (in km/hr) in the speed of the bus?
Option 1: 1
Option 2: 2
Option 3: 3
Option 4: 4
Correct Answer: 4
Solution :
Initial speed = 33 km/hr
Total time = 7 hours
Total distance = 315 km
Distance travelled in the first hour = 33 km
Let the hourly increment in the speed of the bus be
So,
Hence, the correct answer is 4.