GCSE Maths Ratio

In a class of 42 students the ratio of male: female is 2:4. How many females are there?

• 14

• 28

• 40

• 42

If 200 grams of one ingredient is used in a recipe, which calls for a ratio of 4:7 with a second ingredient, how much of the second ingredient is needed?

• 203 grams

• 280 grams

• 350 grams

• 1400 grams

The ratio of grapes to oranges in a fruit bowl is 18:3. If there are 24 grapes, how many oranges are there?

• 72

• 4

• 5 1/2

• 8

To make Positively Purple paint you need to mix red, yellow and blue paint in the ratio 2:3:4. If I have 510ml of yellow paint how much red paint will I need to make a tin of Positively Purple paint?

• 680ml

• 170ml

• 340ml

Emma, Sarah and Mark earn £60 selling donuts at a car boot sale. Emma worked for 3 hours, Sarah for 5 hours and Mark for 2 hours. They share the money in proportion to the number of hours worked. How much money does Sarah earn?

• £30

• £6

• £18

• £24

Louise and Sam have a collection of DVDs. For every 2 action movies Sam owns, Louise has 5 comedies. If Louise has 30 comedies, how many DVDs do they have in total.

• 105 DVDs

• 42 DVDs

• 12 DVDs

A recipe for 12 cupcakes needed 300g flour. How much is needed for 17 cupcakes?

• 25g

• 450g

• 425g

• 60g

Simplify the ratio 25:35

• 25:35

• 10:30

• 5:7

• 1:5

The number of people who voted Green Party in an election was 1500. The number of people who voted for the Blue Party was 9000.

Write the ratio of Green Party voters to Blue Party voters in its simplest form.

• 10:900

• 15:90

• 5:18

• 1:6

At a rugby match, the ratio of children to adults is 2:3

There are 80 children in the crows.

Each adult ticket costs £8

Each child ticket costs a quarter of the adult ticket

Work out the total money made from ticket sales.

• £562

• £448

• £442

• £420