Elite Mathematics / Linear / Topics / Ratio Toolkit
IGCSE · 4MA1 · Topic Ratio Toolkit: past paper questions & worked solutions
Every Ratio Toolkit question from the 4MA1 papers in our bank, 2020–2026, sorted from easiest to hardest. Try each one first, then open the worked solution.
14 questions
55 marks in total
26% of papers (14 of 54) include it
0/11/3 easy / medium / hard
Questions, easiest first Level is estimated from marks: 1–2 easy, 3–4 medium, 5+ hard.
1. Nov 2023 P2H · Q5 Medium 3 marks
Show worked solution Butter sugar Butter : sugar \(=3:2\).
Split the ratio Sugar is \(120\) g, so
\[
2\text{ parts}=120
\]
\[
1\text{ part}=60
\]
\[
\text{butter}=3\times 60=180
\]
Flour butter Flour : butter \(=6:5\).
\[
5\text{ parts}=180
\]
\[
1\text{ part}=36
\]
\[
\text{flour}=6\times 36=216
\]
Final answer \(216\) grams
2. May 2023 P1H · Q1 Medium 3 marks
Show worked solution The ratio is \[
\text{Arjun}:\text{Simon}:\text{Kath}=2:5:8
\]
Simon scored more than Arjun Simon scored \(12\) more than Arjun.
\[
5-2=3\text{ parts}
\]
\[
3\text{ parts}=12
\]
\[
1\text{ part}=4
\]
Kath scored \[
8\times 4=32
\]
3. Jan 2022 P1H · Q2 Medium 3 marks
Show worked solution The ratio is \[
\text{Danil} : \text{Gabriel} : \text{Hadley}=3:5:9
\]
Split the ratio The difference between Gabriel and Hadley is
\[
9-5=4 \text{ parts}
\]
Split the ratio These 4 parts are \(196\) euros, so one part is
\[
196 \div 4=49
\]
Danil has 3 parts Danil has 3 parts:
\[
3\times 49=147
\]
Final answer Danil receives \(147\) euros.
4. May 2021 P1H · Q4 Medium 3 marks
Show worked solution Ducks pigs Ducks : pigs \(=5:9\).
Split the ratio There are \(36\) pigs, so
\[
9\text{ parts}=36
\]
\[
1\text{ part}=4
\]
\[
\text{ducks}=5\times 4=20
\]
Chickens ducks Chickens : ducks \(=7:2\).
\[
2\text{ parts}=20
\]
\[
1\text{ part}=10
\]
\[
\text{chickens}=7\times 10=70
\]
5. Jan 2020 P1HR · Q1 Medium 3 marks
Show worked solution The ratio is \[
\text{Brendon} : \text{Asha} : \text{Julie} = 3:2:6
\]
Asha and Julie together have \[
2+6=8 \text{ parts}
\]
These 8 parts are worth These 8 parts are worth \(\$36\), so one part is
\[
36 \div 8=4.50
\]
Brendon has 3 parts Brendon has 3 parts:
\[
3 \times 4.50=13.50
\]
Final answer Brendon receives \(\$13.50\).
6. Nov 2025 P1H · Q6 Medium 4 marks
Show worked solution The ratio is \[
\text{Eli} : \text{Peta} = 2:3
\]
Split the ratio There are 5 parts, so one part is
\[
275 \div 5=55
\]
Eli gets \[
2 \times 55=110
\]
Peta gets \[
3 \times 55=165
\]
Eli gives \[
\frac{3}{11}\times 110=30
\]
Peta gives \[
0.32\times 165=52.8
\]
Total given to charity Total given to charity:
\[
30+52.8=82.8
\]
7. Jun 2025 P2H · Q6 Medium 4 marks
Show worked solution The original ratio is \[
\text{Pau} : \text{Sam} : \text{Tia} = 3:4:5
\]
There are \[
3+4+5=12 \text{ parts}
\]
Each part is \[
240 \div 12=20
\]
Split the ratio So the original amounts are
\[
60,\ 80,\ 100
\]
Sam gives 10 to Pau Sam gives 10 to Pau and Tia gives 10 to Pau, so the new amounts are
\[
80,\ 70,\ 90
\]
Divide by 10 Divide by 10:
\[
80:70:90=8:7:9
\]
Final answer The new ratio is \(8:7:9\).
8. May 2025 4WM2H · Q7 Medium 4 marks
Show worked solution The original ratio is \[
\text{Pau} : \text{Sam} : \text{Tia} = 3:4:5
\]
There are \[
3+4+5=12 \text{ parts}
\]
Each part is \[
240 \div 12=20
\]
Split the ratio So the original amounts are
\[
60,\ 80,\ 100
\]
Sam gives 10 to Pau Sam gives 10 to Pau and Tia gives 10 to Pau, so the new amounts are
\[
80,\ 70,\ 90
\]
Divide by 10 Divide by 10:
\[
80:70:90=8:7:9
\]
Final answer The new ratio is \(8:7:9\).
9. Jun 2023 P2H · Q5 Medium 4 marks
Show worked solution Let the number of pence Let the number of \(2\) pence coins be \(x\).
Split the ratio Then the number of \(5\) pence coins is \(3x\).
Total value Total value:
\[
2x+5(3x)=85
\]
\[
17x=85
\]
\[
x=5
\]
Split the ratio So there are \(5\) two-pence coins and \(15\) five-pence coins.
\[
15-5=10
\]
Final answer \(10\) more \(5\) pence coins
10. Jan 2021 P1H · Q1 Medium 4 marks
Show worked solution of the money is changed \(\frac{3}{10}\) of the money is changed to euros, so the rest is
\[
\frac{7}{10}\times 20160=14112
\]
Split the ratio This rest is divided in the ratio
\[
\text{dollars} : \text{rupees} : \text{francs}=9:5:2
\]
There are \[
9+5+2=16 \text{ parts}
\]
Split the ratio The difference between dollars and francs is
\[
9-2=7 \text{ parts}
\]
Split the ratio So the difference is
\[
\frac{7}{16}\times 14112=6174
\]
Final answer \(6174\) rand more is changed into dollars than francs.
11. Jan 2020 P2H · Q12 Medium 4 marks
Show worked solution Convert standard form Dane Oil costs \(2500000\) Krone for
\[
4.2\times 10^5=420000
\]
litres litres.
\[
\text{Dane cost per litre}=\frac{2500000}{420000}=5.952\ldots
\]
Convert standard form So Dane Oil costs about \(5.95\) Krone per litre.
Arctic Oil costs dollars. Convert Arctic Oil costs \(770000\) dollars. Convert this to Krone:
\[
770000\times 6.57=5058900
\]
Arctic Oil gives \[
8.6\times 10^5=860000
\]
litres litres.
\[
\text{Arctic cost per litre}=\frac{5058900}{860000}=5.882\ldots
\]
Arctic Oil has the lower Arctic Oil has the lower cost per litre.
12. Jun 2026 P2HR · Q5 Hard 5 marks
Show worked solution Solution | Step 1 \[\text{Sarah to B}=400\times\frac{3}{2+3}=240\text{ dollars}.\]
Charity B receives 3 of the 5 equal shares.
Solution | Step 2 Dej gives to A and B in the ratio \(1:2\), so \[\text{Dej to B}=375\times\frac{2}{3}=250\text{ dollars}.\]
Twice as much to B means that B receives 2 of the 3 shares.
Solution | Step 3 \[250-240=10\text{ dollars}.\]
Subtract the two donations to charity B.
Final answer \(\$10\) more.
13. Specimen 4WM2H · Q10 Hard 5 marks
Show worked solution The total number of parts The total number of parts is
\[
7+5+3=15
\]
Each part is \[
300\div 15=20
\]
Split the ratio So the numbers of cards are:
\[
140,\quad 100,\quad 60
\]
The birthday cards with numbers The birthday cards with numbers are
\[
\frac25 \times 140=56
\]
The anniversary cards with numbers The anniversary cards with numbers are
\[
36\%\times 100=36
\]
Split the ratio So the total with numbers is
\[
56+36=92
\]
The fraction of all cards The fraction of all cards is
\[
\frac{92}{300}=\frac{23}{75}
\]
Final answer \(\frac{23}{75}\).
14. Jan 2020 P1H · Q5 Hard 6 marks
Show worked solution Split the ratio Girls : boys \(=3:5\), so there are \(8\) parts.
\[
\text{girls}=120\times \frac38=45
\]
\[
\text{boys}=120\times \frac58=75
\]
Split the ratio Boys climbing:
\[
\frac{16}{25}\times 75=48
\]
Split the ratio Boys sailing:
\[
75-48=27
\]
Split the ratio For the girls, twice as many go sailing as climbing, so the girls are split in the ratio
\[
\text{sailing}:\text{climbing}=2:1
\]
Split the ratio Girls sailing:
\[
\frac23\times 45=30
\]
Total sailing Total sailing:
\[
27+30=57
\]
More IGCSE Maths 4MA1 topics
Dr Eslam Ahmed Elite Mathematics · Questions classified by topic, solutions checked by Dr Eslam