A car goes at an average speed of 36 km/h for 15 minutes and 60 km/h for the next 15 minutes. How much distance did it cover?

25 km

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26 km

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20 km

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24 km

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Solution

The correct option is D
24 km

Distance = Speed $\times$ Time
For first 15 minutes, distance travelled
$= 36 k m / h \times \frac{1}{4} h$
$= (36 \times \frac{1}{4}) k m$
$= 9 k m s$
For next 15 minutes, distance travelled
$= 60 k m / h \times \frac{1}{4} h$
$= (60 \times \frac{1}{4}) k m s$
$= 15 k m s$
Total distance travelled $= (9 + 15) k m s$
$= 24 k m s$

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Similar questions

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:

A car moves with a speed of 40 km/hr for 15 minutes and then with a speed of 60 km/hr for the next 15 minutes. What is the total distance covered by the car? Also, find the average speed of the car. [5 MARKS]

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A car goes at an average speed of 36 km/h for 15 minutes and 60 km/h for the next 15 minutes. How much distance did it cover?

The correct option is D 24 km Distance = Speed × Time For first 15 minutes, distance travelled =36 km/h×14 h =(36×14) km =9 kms For next 15 minutes, distance travelled =60 km/h×14 h =(60×14) kms =15 kms Total distance travelled =(9+15) kms =24 kms