Free Year 9 Ratio problems Practice | Skillo
Skillo provides free Year 9 NAPLAN Ratio problems practice (AC9M7N08) for Australian students. No signup, no email, no credit card. Practice questions aligned with the ACARA Australian Curriculum v9.0 strand. Open and start in 10 seconds.
Year 9 students sitting their final NAPLAN need to be confident with ratio problems. Recognise, represent and solve problems involving ratios. Skillo has targeted practice questions for this exact skill, mapped to the Australian Curriculum v9.0, free and ready to go.
No account needed. No email. No credit card.
What does the Year 9 NAPLAN Ratio problems test cover?
- Recognise, represent and solve problems involving ratios.
- Questions may include word problems set in real Australian contexts
- Both calculator and non-calculator question types are covered
Try a sample Ratio problems question
Question 1 — Easy
A recipe for 12 cookies requires 180g of butter. How much butter is needed to make 20 cookies?
Answer: Unit rate: 180 ÷ 12 = 15 g per cookie. For 20 cookies: 15 × 20 = 300 g. Alternatively: 180 × (20/12) = 180 × 5/3 = 300 g. Option A (216 g) uses 180 × 12/10 = 216. Option B (240 g) uses 12 g per cookie (180 ÷ 15 error). Option D (150 g) subtracts rather than uses proportional reasoning.
Question 2 — Medium
A school garden has flowers and vegetables planted in the ratio 2 : 5. If there are 18 flower plants, how many vegetable plants are there?
Answer: Since the ratio of flowers to vegetables is 2 : 5, each part equals 18 ÷ 2 = 9 plants, so there are 5 × 9 = 45 vegetable plants. Option B adds the ratio parts (2 + 5 = 7) instead of scaling, option C doubles 18 without considering the ratio correctly (confusing with a 1:2 ratio), and option D rounds to 50 without applying the correct scale factor.
Question 3 — Hard
A cordial drink is made by mixing cordial and water in the ratio 1 : 4. How many millilitres of cordial are needed to make 500 mL of drink in total?
Answer: The ratio 1 : 4 means 1 part cordial to 4 parts water, giving 5 parts total. Each part equals 500 ÷ 5 = 100 mL, so cordial = 1 × 100 = 100 mL. Option B (125 mL) incorrectly divides 500 by 4 instead of 5; Option C (400 mL) confuses the water amount with the cordial amount; Option D (250 mL) incorrectly treats the ratio as 1 : 1.
How should my child prepare for Year 9 NAPLAN Ratio problems?
- Select Year 9 and Numeracy on the home screen
- Use Quick Practice — questions on ratio problems will appear as part of the session
- Check the Skill Breakdown on your profile to track your accuracy on ratio problems specifically
- Review explanations after each question to understand the reasoning behind correct answers
Skillo is free, requires no email or account details, and is built specifically for Australian students. Every question is mapped to the Australian Curriculum v9.0 and filtered by skill so your child practises exactly what they need.
Common questions about NAPLAN Ratio problems
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Is Skillo really free?
Yes. Skillo is completely free for all Australian students — no subscription, no credit card, no hidden paywall. No free trial that converts to paid.
Does my child need an account?
No. Skillo doesn't require an account to practise. Open any page and start immediately — no email, no registration.
Does Skillo collect any personal information?
No. Skillo is built to require zero personal information. No name, no email, no date of birth is collected from students.
Is Skillo affiliated with NAPLAN?
Skillo's NAPLAN-style practice is authored independently. NAPLAN® is a registered trademark of ACARA. Skillo is not affiliated with, endorsed by, or sponsored by ACARA.
No account needed. No email. No credit card.
About this practice
Skillo's NAPLAN-style practice is authored independently. NAPLAN® is a registered trademark of ACARA. Skillo is not affiliated with, endorsed by, or sponsored by ACARA.