Ratio and proportion - Lesson 2

Ratio and proportion - Lesson 2

Multiple Choice

What ratio is equivalent to 3:5

• 30 : 500

• 9 : 15

• 13 : 1 5

• 1 : 2

Multiple Choice

In a class of 10 boys and 14 girls the ratio of girls to boys is

• 10 : 14

• 1 : 2

• 7 : 5

• 5 : 7

Multiple Choice

Simplify as fully as possible 28:42

• 14 : 21

• 3 : 2

• 1 : 1.5

• 2 : 3

Open Ended

Simplify:

40 : 25 : 10

Open Ended

Simplify 27 : 18 : 9

Open Ended

Simplify:

20 : 45 : 5

Multiple Choice

Share 120 in the ratio 2 : 5 : 3

• 20 : 54 : 46

• 24 : 60 : 36

• 18 : 88 : 14

• 20 : 68 : 32

Multiple Choice

Split £36 into the ratio 1:2

• £24 : £12

• £12 : £24

• £6 : £30

• £30 : £6

Multiple Choice

Split £20 into the ratio 7:3

• £12 : £8

• £7 : £3

• £6 : £14

• £14 : £6

Open Ended

Share £50 into the ratio 2:3

Open Ended

Divide 45Kg

into the ratio 2: 7

Open Ended

Share £80 into the ratio 7 : 13

Recipes

Here is a list of ingredients to make 6 pancakes.

Flour 120 grams

Eggs 2

Milk 210ml

How much of each ingredient would you need to make 9 pancakes?

Multiple Choice

You are doubling a recipe. The original recipe uses 1 tsp. of salt. How much is double?

• 1/2 tsp

• 2 tsp

• 1 1/2 tsp

• 1 tsp

Multiple Choice

1 large onion = 1 cup chopped. How many cups would half an onion be?

• 2 cups

• 1/2 cup

• 1/3 cup

• 1/4 cup

Multiple Choice

The recipe calls for 30 ml of butter, but you are only making half the recipe. How much butter do you need?

• 10 ml

• 15 ml

• 20 ml

• 60 ml

Your Turn

 Jake is making scones. Here is a list of ingredients to make 8 scones.

How much of each ingredient would be needed to make:

(a) 16 scones?

(b) 4 scones?

(c) 24 scones?

(d) 40 scones?

(e) 80 scones?

(f) 2 scones?