Question

A train P takes 40 s to cross a train 800m long and having a speed of 30m/s in the opposite direc- tion.It takes 120s to cross another train twice its length and having the same speed and moving in the opposite direction to it.Find the length of the train P in metres. (a) 600 (b) 800 (c) 1000 (d) 1200​

Answer 1

Step-by-step explanation:

d. will be the answer

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