Ratio (P6) Practice
Master advanced ratio problems: combining ratios, constant total/difference, and the challenging 'before and after' ratio changes. These multi-step problems are among the highest-scoring questions in PSLE.
Common Mistakes to Avoid
Confusing 'constant total' (total doesn't change) with 'constant difference' (difference between quantities doesn't change)
Failing to make the common term equal when combining two ratios
Assuming the same unit value across 'before' and 'after' ratios
Practice Questions
Try each question. When you're stuck, reveal the Socratic strategy β a guided hint that teaches you how to think, not just what to write.
The ratio of boys to girls is 3:5. If there are 15 boys, how many girls are there?
A:B = 2:3 and B:C = 4:5. Find the ratio A:B:C.
The ratio of apples to oranges is 2:1. After 10 more oranges are added, the ratio becomes 1:1. How many apples were there at the start?
Parent & Tutor Insight
Ratio is the most concept-dense topic in P6. The key insight students need: 'Units can change value β always find 1 unit before finding the target.' Students who master this have the strongest PSLE performance.
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