Mathematics for IGCSE & O level - Ratio And Proportion (Section 4 - No. 26)
If the scale on a blueprint is 1:50, what does a 10mm line on the blueprint represent in real life?
0.5 m
5 m
0.5 cm
5 cm
Explanation
10mm * 50 = 500mm, = 50cm = 0.5m.
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