Question

A train 216 M long across a man standing at the platform in 9 seconds how long will it take to cross the platform 222 metre long running at the same speed.

Answer 1

here,
that train to cross 216m will take 9s
„ „ „ „ (222+216)m „ „ 9/216×438s
= 18.25s(Ans)

Answer 2

Answer:

According to question

, Length of platform= 21 × 19 − 216 = 183 21×19-216=183 meter

Let x coaches are added
                        216 + 183 + 21 x = 21 × 26 216+183+21x=21×26 ⇒ 21 x = 147
⇒21x=147 ⇒ x = 7