1. Ratio and proportion workout

2. Click for multiple choice
There are 15 boys and 20 girls in a class. What is the ratio of boys : girls as a simplified ratio?
Click for multiple choice
Answer
A: 3 : 4
B: 4 : 3
C: 3 : 7
D: 4 : 7
3 : 4

3. Click for multiple choice
There are 8 boys on a school bus. There are 20 children in total on the bus. What is the ratio of boys : girls as a simplified ratio?
Click for multiple choice
Answer
A: 8 : 20
B: 1 : 10
C: 2 : 5
D: 2 : 3
2 : 3

4. Click for multiple choice
The ratio of butter : sugar in a pancake syrup recipe is 2 : 3. If I use 10g butter, how much sugar will I need?
Click for multiple choice
Answer
A: 11g
B: 13g
C: 15g
D: 100g
15g

5. Click for multiple choice
The ratio of butter : sugar in a pancake syrup recipe is 2 : 3. If I make 50g of syrup, how much butter will I use?
Answer
Click for multiple choice
A: 10g
B: g
C: 30g
D: 100g
20g

6. Click for multiple choice
The ratio of cheese : tomato in a pizza topping is 4 : 1. If I make100g of topping, how much cheese will I need?
Click for multiple choice
Answer
A: 20g
B: 25g
C: 75g
D: 80g
80g

7. Click for multiple choice
The ratio of cheese : tomato in a pizza topping is 4:1. If I use 10oz (ounces) of cheese, how much tomato will I need?
Click for multiple choice
Answer
A: 1oz
B: 2oz
C: 2 ½ oz
D: 5 oz
2 ½ oz

8. Click for multiple choice
To convert from British pounds to American dollars, use £1 ≈ $1.60 How much is £10 in dollars?
Answer
Click for multiple choice
A: $0.16
B: $1.06
C: £16
D: $16
$16

9. Click for multiple choice
To convert from kilograms to pounds use 1kg ≈ 2.2 pounds How much is 4kg in pounds?
Click for multiple choice
Answer
A: 4.4 pounds
B: 8.8 pounds
C: 44 pounds
D: 10kg
8.8 pounds

10. Click for multiple choice
To convert from miles to kilometres, use 5 miles ≈ 8 km How far is 40 miles in kilometres?
Click for multiple choice
Answer
A: 10km
B: km
C: 32km
D: 64km
64km

11. Click for multiple choice
To convert from miles to kilometres, use 5 miles ≈ 8 km How far is 20 km in miles?
Click for multiple choice
Answer
A: 10 miles
B: 12 ½ miles
C: 32 km
D: 32 miles
12 ½ miles