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If a train runs with the speed of 48 km/h, it reaches its destination late by 12 minutes. However. If its speed in 64 km/h it is late by 3 minutes only. The right time for the train to cover its journey (in minutes) is∶

If a train runs with the speed of 48 km/h, it reaches its destination late by 12 minutes. However. If its speed in 64 km/h it is late by 3 minutes only. The right time for the train to cover its journey (in minutes) is∶ Correct Answer 24

Let right time for the train to cover its journey (in minutes) be x min,

As we know,

Distance = Speed × Time

Distance is same, then

According to the question

48 × (x + 12)/60 = 64 × (x + 3)/60

3 (x + 12) = 4 (x + 3)

3x + 36 = 4x + 12

4x - 3x = 36 - 12

x = 24 min

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