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A man walking at the rate of 4 km/hr crosses a bridge in 18 min. Find the length of the bridge in meters.

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1.2 km

2.2 km

5.2 km

6.2 km

answer is A.

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Detailed Solution

Distance=speed×time
18min =

\frac{18}{60}

hour.
So, Distance = 4km/hr×(

\frac{18}{60}

)hr
=1.2 km.
Hence, The correct answer is option (1).

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