A man travels 120 km by ship, 450 km by ...

A man travels 120 km by ship, 450 km by rail and 60 km by horse taking altogether 13 hrs 30 min. The speed of the train is 3 times that of the horse and 1½ times that of the ship. Find the speed of the train.

A

60 kmph

B

70 kmph

C

80 kmph

D

90 kmph

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