Mathematics for IGCSE & O level - Ratio And Proportion (Section 6 - No. 20)
If the ratio of men to women in a room is 5:3, and there are 15 men, how many women are there?
6
9
23
25
Explanation
If 5 parts = 15 men, then 1 part = 3. Thus, the number of women, 3 parts, = 3 * 3 = 9.
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