a car travels 120 km in 2 hrs 30 mins how much time will it take to cover 40 km in same speed
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Answer:
The distance between two places is 120 km. A car travelling at a certain speed can cover the distance in 2 hours and 30 minutes. By how many km/hr should the speed of the car be increased for it to take 30 minutes less to cover the distance?
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Jim Carter
Answered 2 years ago
Distance = Rate x Time
From the question we know distance and time.
2:30 = 2.5 hours
D / T = R; therefore; 120 / 2.5 = original rate (speed) = OR
…30 minutes less than 2:30 = 2:00 hours = 2.0 hours
Also from the question we know distance and “new time”
Rate (speed) = Distance / Time
120 / 2.0 = new rate = NR
NR - OR = increase in speed required = your answer in kph
car cover 40 km in 50 minutes