Ratio Practice - Year 10

The ratio of girls to boys in a class is 14 : 16

What fraction of the class are girls?

• 7/8

• 7/15

• 8/15

• 8/7

Nadiya uses 12 eggs to bake 3 identical cakes.

How many eggs does she need for 10 cakes?

• 3.6

• 37

• 120

• 40

175 of the customers in a cinema are adults.

50 are children. Which of these is the ratio of children to customers in the form 1 : n?

• 1 : 0.22

• 1 : 0.29

• 1 : 3.5

• 1 : 4.5

A recipe for biscuits uses butter to sugar in the ratio 5 : 3.

How much sugar is needed with 360 grams of butter?

• 600 g

• 216 g

• 225 g

• 135 g

Adam and Matt share some money in the ratio 5 : 8

Adam gets £520. Which of these is the total amount of money shared?

• £200

• £832

• £1352

• £845

84 litres of paint is mixed in the ratio blue : white = 4 : 3

How much white paint is used?

• 28 lt

• 36 lt

• 48 lt

• 63 lt

A bag has 80 counters that are red, white or blue.

A quarter are red.

white : blue = 1 : 3

How many are white?

• 5

• 20

• 45

• 15

Ben and Zoe share some money in the ratio 2 : 5

Zoe gets £210 more than Ben. How much does Ben get?

• £60

• £84

• £140

• £105

Here are the prices of doughnuts at two different shops.

Shop A: 3 doughnuts for £2

Shop B: 5 doughnuts for £3.50

I want to buy 15 doughnuts.

In which shop are the doughnuts cheaper?

• Shop A

• Shop B

• They are equally priced in each shop

• Not enough information to comment

Which one of the answers is the most simplified form of

20 : 30 : 60

• 10 : 15 : 30

• 2 : 3 : 6

• 6 : 3 : 2

• 40 : 60 : 120