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A car covers a distance in 40 minutes with an averagespeed of 60 km per hour. The average speed to cover thesame distance in 30 minutes is |
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Answer» Given : A car covers a distance in 40 min with an average speed of 60 km/h.To find : What should be the average speed to COVER the same distance TIME taken by the car in 25 min ?Solution :Let the distance traveled be 'x' km.Time taken = 40 MINUTES = \frac{2}{3} 32 hrsAverage speed = 60 km/hrThe distance FORMULA is \text{Distance}=\text{Speed}\times \text{Time}Distance=Speed×Time\text{Distance}=60\times \frac{2}{3}Distance=60× 32 \text{Distance}=40\ kmDistance=40 kmNow, the time is 25 minute = \frac{5}{12} 125 hrThen the average speed is given by,\text{Speed}=\frac{\text{Distance}}{\text{Time}}Speed= TimeDistance \text{Speed}=\frac{40}{\frac{5}{12}}Speed= 125 40 \text{Speed}=96\ km/hrSpeed=96 km/hrTherefore, the average speed to cover the same distance time taken by the car in 25 min is 96 km/hr |
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