Question

0. A train passes an electrical pole in 20 s and passes a
platform 250 m long in 45 s. Find the length of the train.
(b) 300 m​

Answer 1

Answer:

Correct Option: B

If the length of train be x metre,

then speed of train

=

x

=

x + 250

20 45

⇒

x

=

x + 250

4 9

⇒ 9x = 4x + 1000

⇒ 9x – 4x = 1000

⇒ 5x = 1000

⇒ x =

1000

= 200 metre

5