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Ravi's house is 90 kìlometers away from ...

Ravi's house is 90 kìlometers away from the railway station. If only he starts from the house at 8'o clock and reaches the. railway station at `9.30` by car he can catch the train. At what speed should car travel?

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Total distance. =90 km . Time taken to travel =1 hour 30 minutes `=1 1/2 ` hours Speed of the car `=90 div 1 1/2=90 div 3/2=90 xx 2/3 ` r =60 km / hour .
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