Question
If a bus travel 15 km in 10 minute then how much time
take if speed is decrease by 15 km/h?Solution
Distance covered in 10 minutes = 15 km. So the speed of the bus = (15/10) × 60 = 90 km/hr Reduced speed = (90 – 15) km/hr = 75 km/hr Time taken to cover 15 km = (60/75) × 15 = 12 minutes
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