A train 75 m long overtook a person who was walking at the rate of 6 km/ hr in the same direction and passed him in `7 1/2` seconds. Subsequently, it overtook a second person and passed him in `\ 6 3/4` seconds. At what rate vas the second person travelling? `1\ k m//h r` b. `2\ k m//h r` c. `5\ k m//h r` d. `4\ k m//h r`

Options

A. 3 kmph
B. 2 kmph
C. 4 kmph
D. 1 kmph

Answer

B