11.

A train overtakes two persons who are walking in the same direction in which the train is going, at the rate of 2 kmph and 4 kmph and passes them completely in 9 and 10 seconds respectively. The length of the train is :

A) 45 m

B) 50 m

C) 54 m

D) 72 m

E) 82 m

12.

A train X speeding with 120 kmph crosses another train Y, running in the same direction, in 2 minutes. If the lengths of the trains X and Y be 100 m and 200 m respectively, what is the speed of train Y ?

A) 111 km/hr

B) 123 km/hr

C) 127 km/hr

D) 129 km/hr

E) 129 km/hr

13.

Two trains of equal lengths take 10 seconds and 15 seconds respectively to cross a telegraph post. If the length of each train be 120 metres, in what time (in seconds) will they cross each other travelling in opposite direction ?

A) 10

B) 12

C) 15

D) 20

E) 25

14.

A 270 metres long train running at the speed of 120 kmph crosses another train running in opposite direction at the speed of 80 kmph in 9 seconds. What is the length of the other train ?

A) 230 m

B) 240 m

C) 260 m

D) 320 m

E) 265 m

15.

Two goods train each 500 m long, are running in opposite directions on parallel tracks. Their speeds are 45 km/hr and 30 km/hr respectively. Find the time taken by the slower train to pass the driver of the faster one.

A) 12 sec

B) 24 sec

C) 48 sec

D) 60 sec

E) 62 sec

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