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Ratios

Last updated over 1 year ago

8 questions

Note from the author:

Ratios for Year 11 VCE General mathematics

Instructions

Please answer all questions

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1

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Question 1

1.

Write the following as a simplified ratio.
There are 12 dogs and 3 cats.

Question 2

2.

What is the simplified form of the ratio 24:36?

4:5

3:4

5:6

2:3

Question 3

3.

If 5x = 4y, what is the ratio x:y?

5:4

4:5

5:9

1:1

Question 4

4.

The ratio of red to blue marbles is 3:5. If there are 15 red marbles, how many blue?

30

20

25

10

Question 5

5.

In a class, the ratio of girls to boys is 2:3. If there are 18 boys, how many girls?

24

12

9

15

Question 6

6.

2004 Exam 1 Question 1 (Number Patterns and Applications)
Harriet, Joshua and Ali share a bag of lollies in the ratio 5 : 3 : 2. Ali gets six lollies.
The total number of lollies in the bag is:

10

20

30

50

60

Question 7

7.

2002 Exam 2 Question 2 (Number Patterns and Applications)
In the island world of Mysteria there is a race of powerful wizards. In the island’s Wiz Academy young boys and girls study Spell-ing where they learn spells, Potions where they learn secret magic mixtures and Mathemagic where the mystery of numbers is revealed.
In the subject Potions students learn to make a mixture which improves their athletic skills on the dance floor. This recipe calls for 3 parts by weight of dragonscale to 2 parts by weight of dogwort and 4 parts by weight of honey. How much dogwort is needed to make 27 grams of this mixture?

Question 8

8.

Jim is baking a cake. The ratio of mL of milk to the number of eggs to grams of sugar is: 120: 1: 100. He wants to make 3 batches of the mixture and has the following available: 500mL of milk, 3 eggs and a quarter of a kilo of sugar. Is there enough ingredients? Explain you answer by showing the correct ratios.