Question

Train P crosses a pole in 6 sec. Train Q

coming from opposite direction crosses a

bogie of train P of length 1/3 of train P in 4

seconds. Length of Train P and Train Q are in

the ratio 5 : 4. Find the speed of Train P, if

the speed of Train Q is 21 m/s.​

Answer 1

Answer:

20....................xkxifbdo

Answer 2

Answer:

Let the length of train P and Q are 5a and 4a.

speed of train P = 5a/6

therefore,

(5a/6 + 21)*4 = 5a/3 + 4a

-5a/3 + 4a = 84

a = 36

speed of train P = 36*5/6 = 30m/s