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A car moves with a speed of 40 km/h for 15 minutes and then with a speed of 60 km/h for the next 15 minutes. The total distance covered by the car is:

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15km

25 km

10km

100 km

answer is A.

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Detailed Solution

Distance = Speed x Time.

Hence, 40 x 0.25 =10. (0.25 = 15/60 - converting min to hour)
For the next set, the distance is:

60 x 0.25 =15.
The total distance covered is:

10 + 15 = 25 km

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