Mathematics for IGCSE & O level - Ratio And Proportion (Section 2 - No. 17)
The ratio of apples to oranges in a fruit basket is 3:5. If there are 15 apples, how many oranges are there?
9
20
25
40
Explanation
Apples:Oranges=3:5. 15 apples is 3*5, thus oranges = 5*5 = 25
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