Question

a car is moving at an average speed of 56 3/5 km per hour. how much distance will it cover in 7 1/2 hours.

Answer 1

The speed of the car is :56 3/5km/h or 283/5km/h
Time taken by the car is: 7 ½ hrs or 15/2hrs
Therefore, the distance will be : speed × time
=> 283/5 × 15/2
=> 424.5 km


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Answer 2

Given :

Average speed of car = 56 3/5 km per hour

Which is equal to 283/5 km per hour, when converted to improper fraction.

Now, time that is available = 7 1/2 hours, which is 15/2 hours, in improper fraction.

So, total distance that will be covered = 283/5 * 15/2 =(283*2)/2

= 849/2

= 424.5

Therefore, the distance covered by the car = 424.5 km.

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