The number of oranges in a basket is 49 of the number of apples. What is the ratio of the number of apples to the total number of fruit in the basket?
- 9 : 4
- 9 : 13
- 4 : 13
- 4 : 9
Need a hint?
Draw a bar for apples split into 9 equal units, then add the oranges bar. What is the total in units?
Worked answer
- Oranges are 49 of the apples, so let the apples be 9 units.
- Then the oranges are 4 units.
- Total fruit = 9 units + 4 units = 13 units.
- Ratio of apples to total fruit = 9 : 13.
Answer: 9 : 13
The mistake this question tests
Habit
Stopped at one part in ratio
Pupils compare apples with oranges (9 : 4) or use the fraction 49 directly as the ratio, forgetting that the question asks for the total fruit.
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See the answer →Practise PSLE ratio until the mistakes stop.
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