Question

A train runing 420m in 54 minuts but 140m runing how many times

Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Speed = 45 Km/hr = 45*(5/18) m/sec

= 25/2 m/sec

Total distance = 360+140 = 500 meter

Time = Distance/speed

\begin{aligned}

= 500*\frac{2}{25} = 40 seconds

\end{aligned}