Mathematics for IGCSE & O level - Ratio And Proportion (Section 3 - No. 31)
A model of a house has a scale of 1:20. The height of the model is 1.2 meters. What is the actual height of the house in meters?
2.4 m
12 m
24 m
120 m
Explanation
1.2 * 20 = 24
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