BdMO National Primary 2016/1

[samiul_samin]

If a $1$ mile long train crosses a $2$ mile platform in $1 $ minute,then what is the required time for $2016$ mile long train of same speed while crossing a $2016$ mile platform?

[samiul_samin]

Hint

The speed of the train is $3 mile/minute$

Answer

$22$ hour and $24$ minutes.

[samiul_samin]

Solution

Case $1$

Total distance$=2+1=3$ mile
Time=$1 minute$
Speed=$3 mile/minute$

Case2

Total distance$=2016+2016=4032 mile$
Speed$=3 mile/minute$.
Time$=4032/3=1344 minute$
So,the answer is $\fbox{22 hour and 24 minutes}$