Mathematics for IGCSE & O level - Ratio And Proportion (Section 6 - No. 27)
A photograph is enlarged in the ratio 2:1. If the original photo was 5 cm wide, what is the width of the enlarged photo?
2.5 cm
5 cm
7.5 cm
10 cm
Explanation
The ratio 2:1 means the new photo is twice as wide: 5cm * 2 = 10cm.
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