Mathematics for IGCSE & O level - Ratio And Proportion (Section 1 - No. 31)
The sides of a rectangle are in the ratio 3:5, and the perimeter is 48 cm. Find the length of the shorter side.
6 cm
9 cm
12 cm
15 cm
Explanation
3+5=8, 8*2=16 ,48/16 = 3. Shortest side is 3*3=9
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