IBPS RRB Officer Scale 1 Model Paper 12

A man travels 2400 km from Agartala to Bubneshwar by air, train and ship. The distance travelled by ship is twice the distance travelled by train. The speed of the aircraft is twice the average speed of the man for the journey and the time he was on the ship was thrice the time he was on the train. If the man travels 10 h by train out of the total travel time of 50 h, then what is the total distance covered by theship?