A train running at 72 km/h overtakes a cyclist riding at 12 km/h in the same direction in 12 seconds. Find the length of the train. MCQ with Answer and Explanation
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Question #1
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A train 250 meters long passes a static track utility pole in 10 seconds flat. Find the time it takes to completely pass a platform of length 500 meters.
Correct Answer: Option A
Explanation:
Speed of train = 250 / 10 = 25 m/s. Total distance to pass platform = 250 + 500 = 750 meters. Time taken = 750 / 25 = 30 seconds.
Speed of train = 250 / 10 = 25 m/s. Total distance to pass platform = 250 + 500 = 750 meters. Time taken = 750 / 25 = 30 seconds.
This question belongs to:
Maths
Time Speed and Distance
Question #2
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In a 300-meter dash race, X completes the track in 33 seconds and Y completes it in 36 seconds. By what distance does X beat Y?
Correct Answer: Option A
Explanation:
Speed of Y = 300 / 36 = 25/3 m/s. Distance covered by Y when X crosses the finish line at 33 seconds = (25/3) * 33 = 25 * 11 = 275 meters. Winning margin = 300 - 275 = 25 meters.
Speed of Y = 300 / 36 = 25/3 m/s. Distance covered by Y when X crosses the finish line at 33 seconds = (25/3) * 33 = 25 * 11 = 275 meters. Winning margin = 300 - 275 = 25 meters.
This question belongs to:
Maths
Time Speed and Distance
Question #3
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A boat moves upstream at 9 km/h and downstream at 15 km/h. Find the speed of the boat in still water.
Correct Answer: Option C
Explanation:
Speed in still water = (Downstream speed + Upstream speed) / 2 = (15 + 9) / 2 = 12 km/h.
Speed in still water = (Downstream speed + Upstream speed) / 2 = (15 + 9) / 2 = 12 km/h.
This question belongs to:
Maths
Time Speed and Distance
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