Excluding institutional stops, the speed of an intercity coach is 72 km/h and including stops it is 60 km/h. For how many minutes does the coach stop per hour? MCQ with Answer and Explanation

Excluding institutional stops, the speed of an intercity coach is 72 km/h and including stops it is 60 km/h. For how many minutes does the coach stop per hour?
A. 15 minutes
B. 8 minutes
C. 12 minutes
D. 10 minutes
Answer: Option D
Solution (By JKSSB Mock Tests)
Stoppage time per hour = (72 - 60) / 72 = 12 / 72 = 1/6 hour. In minutes = (1/6) * 60 = 10 minutes.

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Practice More Time Speed and Distance Questions

Question #1
A passenger coach locomotive 200 meters long passes a clear roadside post marker in 10 seconds flat. Find the time needed to cross an extensions platform 440 meters long.
A. 40 seconds
B. 32 seconds
C. 28 seconds
D. 36 seconds

Correct Answer: Option B


Explanation:
Speed of coach locomotive = 200 / 10 = 20 m/s. Total distance to clear platform stretch = 200 + 440 = 640 meters. Time required = 640 / 20 = 32 seconds.

This question belongs to: Maths Time Speed and Distance
Question #2
A man can row 6 km/h in still water. If the speed of the current is 2 km/h, it takes him 3 hours to row to a place and back. How far is the place?
A. 10 km
B. 6 km
C. 12 km
D. 8 km

Correct Answer: Option D


Explanation:
Downstream speed = 6 + 2 = 8 km/h. Upstream speed = 6 - 2 = 4 km/h. Let distance be d. d/8 + d/4 = 3 => (d + 2d)/8 = 3 => 3d/8 = 3 => d = 8 km.

This question belongs to: Maths Time Speed and Distance
Question #3
A cargo truck covers the first 4 hours of its route at 60 km/h and the remaining 3 hours at 70 km/h. Find the net average speed.
A. 65.50 km/h
B. 66.00 km/h
C. 63.25 km/h
D. 64.28 km/h

Correct Answer: Option D


Explanation:
Distance 1 = 60 * 4 = 240 km. Distance 2 = 70 * 3 = 210 km. Total distance = 240 + 210 = 450 km. Total time = 4 + 3 = 7 hours. Average speed = 450 / 7 = 64.28 km/h.

This question belongs to: Maths Time Speed and Distance