Question

2. A train crosses a 300 m. long platform in 20 secs. & a telegraph pole in 10 secs.
The length of the train is:
(A) 100 m. (B) 200 m. (C) 300 m. (D) 400 m.​

Answer 1

Answer:

Correct option is

B

350 m

Speed=(

8

300

)m/sec=

3

50

m/sec

Let the length of the platform be x metres.

Then, (

39

x+300

)=

3

50

⇒3(x+300)=1950

⇒x=350m

Answer 2

ans step by step exaplination 100*20300