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a commuter train travels 40 kilometers in 33 minutes. what is its speed in kilometers per hour

Sagot :

Answer:

Units: ( km / min) * (min / hr) = km / hr

(The units for minutes cancel each other out)

Speed = (68 km / 33 min) * (60 min / 1 hr) = 123.6 km/hr

Step-by-step explanation:

Good question - this is going to be a unit conversion-type question.  What we have is two different units of time, which we'll have to convert between, knowing the fact that 60 minutes = 1 hour.

Hope that helps!