The average of a car is 135 times the average of a bus. A tracor covers 1150 km in 23 hours. how much distance will the car cover in 4 hours if the speed of the bus is twice the speed of the tractor?
Explanation:
Speed of tractor = 1150/23 = 50 kmph
Speed of bus is twice the speed of tractor = 2 × 50 = 100 kmph
Speed of car is 8/5 times the speed of bus = 8/5 × 100 = 160 kmph
∴ Distance travelled by car in 4 hours = 4 × 160 = 640 kms.
Hence, option (d).
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