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Mathematics for IGCSE & O level - Ratio And Proportion (Section 3 - No. 18)
The ratio of men to women at a party is 3:5. If there are 15 men, how many women are there?
9
20
25
30
Forklaring
Men:Women = 3:5. If 3 * 5 =15 then 5*5=25
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