An aeroplane covers a certain distance at a speed of 240 kmph

1. 👉 An aeroplane covers a certain distance at a speed of 240 kmph in 5 hours. To cover the same distance in 1 hours, it must travel at a speed of:

1. A. 300 kmph

2. B. 360 kmph

3. C. 600 kmph

4. D. 720 kmph

1. 👉 Answer & Explanation:

   Total Distance Covered = (240 x 5) = 1200 km.

   Speed Formul = Distance/Time

   Speed = 1200 / (5/3) km/hr

   Required Speed = 1200 x (3/5) km/hr

                               = 720 km/hr

    

1. Related Question:

1. An aeroplane flying 1000 km covers the first 200 km at the rate of 200 km/hr, the second 200 km at 400 km/hr, the third 200 km at 600 km / hr & last 200 km at the rate of 800 km/hr. Determine the average speed of the aeroplane.

1. A. 250 km/hr
2. B. 300 km/hr
3. C. 480 km/hr
4. D. 600 km/hr

1. Answer : C ( 480 km/hr )

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1. A car travels a distance of 45 km at the speed of 15 km/hr. It covers the next 50 km of its journey at the speed of 25 km/hr and the last 25 km of its journey at the speed of 8 1/3 km/hr. What is the average speed of the car?

1. A. 40 km/hr
2. B. 24 km/hr
3. C. 15 km/hr
4. D. 18 km/hr

1. Answer : C ( 15 km/hr )

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1. Rashmi leaves office at 6.00 p.m. and catches a 6.30 p.m. local train that arrives in her town at 7.00 p.m. Her father leaves home to pick her up at 7.00 p.m. from the station as she gets off the train. Yesterday, Rashmi left her office early and took a 6.00 pm train and arrived at 6.30 p.m. As her father was not there to pick her up, she started walking towards home. Her father left home at the usual time, saw her daughter walking, turned around, picked her up and drove home, arriving there 10 rnins earlier than the usual. For how long did Rashmi walk before her father picked her up?

1. A. 10 mins
2. B. 15 mins
3. C. 20 mins
4. D. 25 mins

1. Answer : D ( 25 mins )

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1. A man walking at the rate of 6 km/hr crosses a bridge in 15 minutes. The length of the bridge is

1. A. 1000 m
2. B. 1250 m
3. C. 1500 m
4. D. 1800 m

1. Answer : C ( 1500 m )

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1. Two trains start from P and Q respectively and travel towards each other at a speed of 50 km/hr and 40 km/hr respectively. By the time they meet, the first train has travelled 100 km more than the second. The distance between P and Q is :

1. A. 500 km
2. B. 630 km
3. C. 900 km
4. D. 660 km

1. Answer : C ( 900 km )

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1. Two trains, 100 km apart, travel towards each other on the same track. One train travels at 40 km/hr; the other travels at 60 km/hr. A bird starts flying at a speed of 90 km/hr, at the same location of the faster train. When it reaches the slower train, it turns around and flies in the opposite direction at the same speed. When it reaches the faster train, again it turns around and soon. When the two trains collide, how far has the bird flown?

1. A. 90 km
2. B. 45 km
3. C. 180 km
4. D. 135 km

1. Answer : A ( 90 km )

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1. A can do a piece of work in 15 days, B can do it in 18 days. B started the work after 6 days B left and A joins 5 days after the work was started. The work has finished in?

1. A. 12 days
2. B. 17 days
3. C. 15 days
4. D. 9 days

1. Answer : C ( 15 days )

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1. Two trains traveling in the same direction at 40 km/hr and 22 km/hr completely pass each other in 1 min. If the length of the first train is 125 m, what is the length of the second train?

1. A. 125m
2. B. 150m
3. C. 175m
4. D. 200 m

1. Answer : C ( 175m )

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1. The time taken to run around a circular field of area 616 sq km at a speed of 22 km/hr is

1. A. 1 hr
2. B. 2 hrs
3. C. 3 hrs
4. D. 4 hrs

1. Answer : D ( 4 hrs )

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1. A small aeroplane can travel at 320 km/hr in still air. The wind is blowing at a constant speed of 40 km/hrs. The total time for a journey against the wind is 135 mins. What will be the time, in mins, for the return journey with the wind? (Ignore take off and landing times for the aeroplane).

1. A. 94.5
2. B. 105
3. C. 108.125
4. D. 120

1. Answer : B ( 105 )