The distance between the school and the Ravi's house is 20 km. What will be the distance on a map scaled at 1 cm = 2 km?

20 cm

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12 cm

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8 cm

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10 cm

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Solution

The correct option is D 10 cm
Scale: 1 cm = 2 km
$∴ 1 km = \frac{1}{2} cm$

Actual distance between the school and Ravi's house = 20 km

Therefore, Distance on the map
$= 20 \times \frac{1}{2} = 20 \div 2 = 10 cm$

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