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Rashmi has a road map with a scale of 1 cm representing 18 km. She drives on a road for 72 km. What would be her distance covered in the map?

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Let the distance represented on the map be x cm.

The given information in the form of a table is as follows.

Distance covered on road in (in km)1872
Distance represented on map (in cm)1x

The distances covered on road and represented on map are directly proportional to each other. Therefore, we obtain

18/1 = 72/x

x = 72/18 = 4

Hence, the distance represented on the map is 4 cm.

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