# A train 150m long crosses a pole in 5 seconds. Find the time taken by the train to cross a bridge 200m long

Dear Student,

Given : A train 150 m long crosses a pole in 5 seconds . So,

Distance =  150 m and Time  =  5 sec

We know :  Speed  = $\frac{\mathrm{Distance}}{\mathrm{Time}}$ , Then

Speed of train  = $\frac{150}{5}$ = 30 m / sec

Also given :  train to cross a bridge 200 m long , So total distance train has to cover  =  200 + 150 =  350 m

Therefore,

The time taken by the train to cross a bridge 200 m long  = Sec                                            ( Ans )
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