Mathematics for IGCSE & O level - Ratio And Proportion (Section 6 - No. 5)
The ratio of apples to bananas in a fruit basket is 3:4. If there are 12 apples, how many bananas are there?
9
16
18
24
説明
If 3 parts is 12, 1 part = 4. Therefore bananas (4 parts) = 16