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Q.53. If the ratio of speed of train, car and bus is 6:5:3 and
bus covers a distance of d km. in 4 hours, where d
is the

By Clara

Q.53. If the ratio of speed of train, car and bus is 6:5:3 and
bus covers a distance of d km. in 4 hours, where d
is the 4000% of the product of first even and first
odd prime numbers. What is the difference between
speed of the train and car?
(1) 20 km/hr. (2) 30 km/hr. (3) 40 km/hr.
(4) 50 km/hr. (5) None of these​

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