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The scale of a road map indicates that 4 cm is equal to 30 km. How do you calculate the distance between two cities if the road between them is 10 cm long?

1 Answer

Shwetank Mauria

Jun 8, 2016

The distance between two cities is $75$ $75$ $k m s .$ $kms.$

Explanation:

As a road of $4$ $4$ $c m .$ $cm.$ on road map indicates a road of length equal to $30$ $30$ $k m .$ $km.$

Each $c m .$ $cm.$ on map indicates $\frac{30}{4} = 7.5$ $30/4=7.5$ $k m s .$ $kms.$

Hence a distance of $10$ $10$ $c m .$ $cm.$ between two cities on the map indicates

$7.5 \times 10 = 75$ $7.5xx10=75$ $k m s .$ $kms.$

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