The speed of a train is 54 km/hr. without stoppage and 45 km/hr. with…
2024
The speed of a train is 54 km/hr. without stoppage and 45 km/hr. with stoppage. Find how much time in an hour the train stops.
Answer: C. 10 minutes — Given: Speed of bus excluding stoppage = 54 km/hr Speed of bus including stoppage = 45 km/hr Formula used: Speed = distance/time Calculation: Loss in speed…
- A.
46 minutes
- B.
48 minutes
- C.
10 minutes
- D.
56 minutes
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Show answer & explanation
Correct answer: C
Given:
Speed of bus excluding stoppage = 54 km/hr
Speed of bus including stoppage = 45 km/hr
Formula used:
Speed = distance/time
Calculation:
Loss in speed when including stoppage = 54 - 45 = 9 km/hr
In 1 hour, bus covers 9 km less due to stoppage
Hence,
Time in which the bus stop per hour = Time taken to cover 9 km.
Time = Distance/speed
⇒ Time = 9/54
⇒ Time = 1/6 hour
⇒ Time = (1/6) × 60 minutes = 10 minutes