Question

A scale on a blue print drawing of a house shows that 10 centimeters =2 meters. What number of actual meters are represented by 18 centimeters on the blue print?

Answer 1

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Given Ratio
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Blue Print : Actual
10 cm : 2 m

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Find 1 cm
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10 cm : 2 m
1 cm : 2 ÷ 10 m
1 cm : 0.2 m

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Find 18 cm
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1 cm : 0.2 m
18 cm : 0.2 x 18 m
18 cm : 3.6 m

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Answer: 3.6 m
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