Nadia, Omar and Priya share a prize money in the ratio 4 : 3 : 5. Priya receives $126 more than Omar. How much does Nadia receive?
Need a hint?
Find the difference in the ratio first. Which parts of the ratio does $126 stand for?
Worked answer
- Priya : Omar = 5 : 3, so the difference of 5 − 3 = 2 parts.
- 2 parts = $126, so 1 part = $126 ÷ 2 = $63.
- Nadia receives 4 parts = 4 × $63 = $252.
Answer: $252
The mistake this question tests
Habit
Stopped at one part in ratio
Pupils often treat $126 as one ratio part, or divide by the ratio total. The $126 is the difference between two shares, which is 2 parts.
How to fix it at home →Wrong answers children often give:
- $504 Stopped at one part in ratio
- $168 Calculation slip
More PSLE ratio questions
Short answer · 2m
The ratio of boys to girls in a class is 3 : 5
See the answer →Structured · 3mPriya and Marcus had some stickers each
See the answer →MCQ · 2mPoints P, Q, R, S and T lie in that order on a straight path
See the answer →Short answer · 2mOn Arun's town map, 3 cm represents 15 km
See the answer →Structured · 4mA box contains red and blue beads
See the answer →MCQ · 2mIn a park, the ratio of the number of trees in Garden P to the number of trees in Garden Q is 3 : 5
See the answer →Practise PSLE ratio until the mistakes stop.
Three PSLE questions, free, no sign-up. You’ll see exactly where the marks went. Then 7 days of everything for S$4.99.