Bob Read
Quiz por , criado more than 1 year ago

- a set of mixed ratio covering these strategies: scaling up & down; comparing two amounts in their simplest form; dividing according to a ratio

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Bob Read
Criado por Bob Read aproximadamente 9 anos atrás
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Mixed ratio questions

Questão 1 de 10

1

On a school trip the ratio of adults to children should be 1:4.
How many adults would be needed for a group of 30 children?

Selecione uma das seguintes:

  • 8

  • 7

  • 9

Explicação

Questão 2 de 10

1

A 150 ml bottle of perfume costs £3.80. A 450 ml bottle costs £9.99.
How much do you save if you buy the bigger bottle?

Selecione uma das seguintes:

  • £1.41

  • £14.10

  • £1.40

Explicação

Questão 3 de 10

1

150 g of wholemeal flour is mixed with 600 g of white flour to
make a loaf of bread. What is the ratio of wholemeal flour to white flour?

Selecione uma das seguintes:

  • 4:1

  • 1:4

  • 2:3

Explicação

Questão 4 de 10

1

500 ml of concentrated fruit juice is mixed with 2.5 litres of water to make a breakfast drink in a hotel. What is the ratio of concentrate to water?

Selecione uma das seguintes:

  • 5:1

  • !:5

  • 1:10

Explicação

Questão 5 de 10

1

To make a jam you mix sugar with fruit in the ratio of 3:2. How much fruit
do you use in making a 450 g of the jam?

Selecione uma das seguintes:

  • 270 g

  • 180 g

  • 90 g

Explicação

Questão 6 de 10

1

To make a mortar to lay some bricks you mix sand with cement in the ratio of
3:1. How much cement do you use in making a 12 kg of the mortar?

Selecione uma das seguintes:

  • 9 kg

  • 4 kg

  • 3 kg

Explicação

Questão 7 de 10

1

In making enough fruit punch mix for 12 glasses a woman uses 600 ml of
orange juice. How much juice would she need to make 48 glasses?

Selecione uma das seguintes:

  • 2.4 litres

  • 240 ml

  • 24 litres

Explicação

Questão 8 de 10

1

On a college course there are 36 male students and 60 female students.
What is the ratio of men to women?

Selecione uma das seguintes:

  • 3:5

  • 5:3

  • 2:3

Explicação

Questão 9 de 10

1

To make an alloy you mix copper with tin in the ratio of 3:4.
How much copper do you use in making a 420 g of the alloy?

Selecione uma das seguintes:

  • 180 g

  • 1.80 g

  • 240 g

Explicação

Questão 10 de 10

1

To make 10 litres of weed killer a gardener adds 120 g of powder.
How much powder would he use if he only wanted to make 2 litres?

Selecione uma das seguintes:

  • 24 g

  • 30 g

  • 25 g

Explicação