Ratio
P6 Mathematics · Ratio notation, simplifying and combining ratios, the relationship between ratio and fraction, and dividing a quantity in a given ratio (P6 Math Topic 2). · 423 questions · difficulty D1–D5 · Singapore syllabus-aligned
Sample questions
SAMPLE 1
Ali's savings to Bala's savings is in the ratio 2 : 3. Ali's savings to Siti's savings is in the ratio 3 : 5. What is the ratio of Bala's savings to Siti's savings?
- A 2 : 5
- B 3 : 5
- C 5 : 8
- D 9 : 10
SAMPLE 2
Oval A overlaps Oval B. The ratio of the area of Oval A to the shaded overlapping area is 7:1. The ratio of the area of Oval B to the shaded overlapping area is 9:2. If the shaded area measures 8 cm², what is the total area of the entire figure (Oval A + Oval B - the shaded overlap)?
SAMPLE 3
Jack drew three triangles. The areas of the triangles are in the ratio 2 : 5 : 8. He shaded the whole of the smallest triangle, 2/5 of the middle triangle, and 1/4 of the largest triangle. What is the ratio of the total area of the shaded parts to the area of all three triangles?
- A 2 : 5
- B 1 : 3
- C 3 : 8
- D 4 : 9
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