Time and distance

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Speed and Terms related to it

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Word Problems on Time, Work and Speed

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Important Questions

A car travels the first one third of a certain distance with a speed of 10 km/hr, the next one third with a speed of 20 km/hr and the last one third distance with a speed of 60 km/hr The average speed of the car for the whole journey is

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

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Which of the following relations is correct ?

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A machine in a soft drink factory fills 840 bottles in six hours. How many bottles will it fill in five hours?

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The weight of books is kg. What is the weight of such books?

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Ramesh travels to his home partly by train and partly by car. He takes , if he travels by train and the rest by car. He takes minutes more, if he travels by train and the rest by car. Find the speed of train and the car.

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A boat running upstream takes 8 hours 48 minutes to cover a certain distance, while it takes 4 hours to cover the same distance running downstream. What is the ratio between the speed of the boat and speed of the water current respectively?

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The cost of diamond varies directly as the square of its weight. A diamond weight grams cost . If it breaks into two pieces whose weights are in the ratio , then the loss incurred (in rupees)

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The basic unit of speed is:

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Two trains, each 100 m long, moving in opposite directions, cross each other in 8 seconds. If one is moving twice as fast the other, then the speed of the faster train is

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