標題:

Maths (Speed)

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At 18:30 Taxi & Bus have 3 km distance in the same journey in the Highway. At 20:30 Taxi & Bus have 1.8 km distance. If taxi is running at 50 km per hour. What is the speed for the bus? Please show the step.

最佳解答:

Normally, Taxi should be faster than Bus. Therefore, the answer is 49.4km/hr

其他解答:

The answers as follows: Since within 2 hours, their distance is reduced by 1.2 km, and hence their speed difference = ( 1.2 km ) / ( 2 hours ) = 0.6 km/ hr. As you have not specified which vehicle, bus or taxi, is faster, so we can have two possibilities: Case 1: Speed of bus = ( 50 - 0.6 ) km/hr. = 49.4 km/hr Case 2: Speed of bus = ( 50 + 0.6 ) km/hr. = 50.6 km/hr Hope I can help you.
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