a car is moving with a speed of 10 km/h for 30 min with x km/h next 30 min. if the car has to travel total distance 15 km, the value of x.
Asked by disha | 18th Apr, 2014, 12:42: AM
Expert Answer:
We know that Distance = Speed x Time
Distance travelled with 10 km/h for 30 mins = 
Distance travelled with x km/h for 30 mins = 
The total distance to be travelled is 15 km.
Hence, Distance with 10 km/hr speed + Distance with x km/hr = 15 km
Answered by | 18th Apr, 2014, 03:04: PM
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