Working with Ratios

Working with Ratios Quiz

Spec E1.11 · Cambridge IGCSE Maths: Quiz

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5 questions, one answer each

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1. Simplify the ratio $18:24$ .
- A. $3:4$
- B. $6:8$
- C. $2:3$
- D. $9:12$
2. Divide $80 in the ratio$ 3:5$.
- A. $30 and$ 50
- B. $40 and$ 40
- C. $20 and$ 60
- D. $35 and$ 45
3. A map has scale $1:50000$ . A distance of 3 cm on the map represents what real distance?
- A. 1.5 km
- B. 150 m
- C. 15 km
- D. 500 m
4. $y$ is directly proportional to $x^2$ . When $x=2$ , $y=12$ . What is $y$ when $x=5$ ?
- A. 75
- B. 30
- C. 60
- D. 150
5. $y$ is inversely proportional to $x$ . When $x=4$ , $y=9$ . What is $y$ when $x=6$ ?
- A. 6
- B. 13.5
- C. 4
- D. 24