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Understand Recipe Style Questions

In this worksheet, students practise solving problems involving recipe style questions.

'Understand Recipe Style Questions' worksheet

Key stage:  KS 4

GCSE Subjects:   Maths

GCSE Boards:   AQA, Eduqas, Pearson Edexcel, OCR

Curriculum topic:   Ratio, Proportion and Rates of Change

Curriculum subtopic:   Ratio, Proportion and Rates of Change, Direct and Inverse Proportion

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

Ratio and proportion questions now make up a huge percentage of the GCSE Maths papers (40%). One of the most common ways for the examiners to test this knowledge is by using recipe-style questions.

 

Example: A recipe is shown for 12 biscuits. Find out...

a) How much flour is needed for 9 biscuits.

To do this, we need to find the common factor of 12 and 9.This is 3.

We now find out how much flour is needed for 3 biscuits.

12 biscuits = 200 g of flour

3 biscuits = 50 g of flour

From this we can see that...

3 biscuits = 50 g of flour

9 biscuits = 150 g of flour

 

b) How many biscuits can I make if I have 1 kg of flour and plenty of each of the other ingredients.

In this question, the flour is what will limit the amount of biscuits.

I have 1kg (1000g) of flour.

Each batch of 12 needs 400g of flour.

1000 ÷ 400 = 2.5 batches

1 batch = 12 bisuits so 2.5 batches = 12 x 2.5 = 30 biscuits.

Complete the sentence.

The recipe for scones is shown.

How much flour would I need to make 20 scones?

45 g

225 g

900 g

The recipe for scones is shown.

How much butter would I need to make 15 scones.

 

(Don't worry about the units here, just put the number)

The recipe for scones is shown.

I have 1 kg of flour, can I make 30 scones?

 

(Don't worry about the units here, just put the number)

Yes

No

The recipe for cakes is shown

I have 500 g of sugar. How many cakes could I make?

The recipe for cakes is shown

I have 10 eggs. Can I make 6 cakes?

Yes

No

The recipe for cakes is shown

I have 1.5kg of flour and plenty of the other ingredients.

How many cakes can I make.

The recipe for omelettes is shown.

I have 200 eggs, How many omelettes can I make?

The recipe for omelettes is shown.

The ingredients I have are shown below. For each one say how many omelettes I can make.

You also need to say what the maximum number of omelettes I can make overall.

 Number of omelettes
20 eggs
100g of butter
Max Omelettes?

The recipe for omelettes is shown.

Match the ingredients to the amount of omelettes I can make.

Column A

Column B

10 eggs
16 omelettes
48 eggs
10 omelettes
40g of butter
3 omelettes
200g of butter
2 omelettes
  • Question 1

Complete the sentence.

CORRECT ANSWER
EDDIE SAYS
Recipe style questions are used to test your understanding of proportion. This means changing one amount into another.
  • Question 2

The recipe for scones is shown.

How much flour would I need to make 20 scones?

CORRECT ANSWER
900 g
EDDIE SAYS
A nice one to ease you in. We want to make twice as many scones so we need to use twice as much flour.
  • Question 3

The recipe for scones is shown.

How much butter would I need to make 15 scones.

 

(Don't worry about the units here, just put the number)

CORRECT ANSWER
150
EDDIE SAYS
if 10 scones needs 100g of butter, this means that 5 scones need 50 g. How could we use this to find the amount for 15?
  • Question 4

The recipe for scones is shown.

I have 1 kg of flour, can I make 30 scones?

 

(Don't worry about the units here, just put the number)

CORRECT ANSWER
No
EDDIE SAYS
The easiest way to solve this question is to find out how much you would need. If I need 450 g for 10 scones, I would need 3 times as much for 30 scones. 450 x 3 = 1350 g.
  • Question 5

The recipe for cakes is shown

I have 500 g of sugar. How many cakes could I make?

CORRECT ANSWER
3
EDDIE SAYS
Let's start by working out what I need for 1 cake. 1 cake = 150 g of sugar 2 cakes = 300 g of sugar 3 cakes = 450 g of sugar 4 cakes = 600 g of sugar We need to assume that we can't make parts of a cake, so the maximum number of cakes we can make is...
  • Question 6

The recipe for cakes is shown

I have 10 eggs. Can I make 6 cakes?

CORRECT ANSWER
No
EDDIE SAYS
Once again this is about finding out how many batches I can make. 10 eggs ÷ 4 = 2.5 batches. 2.5 x 2 = 5 I can only make 5 cakes.
  • Question 7

The recipe for cakes is shown

I have 1.5kg of flour and plenty of the other ingredients.

How many cakes can I make.

CORRECT ANSWER
10
EDDIE SAYS
Look at the batches. 1.5 kg = 1500g 1500g ÷ 300 g = 5 batches Don't put down 5 as your answer though, this is 5 batches and each batch is worth 2 cakes.
  • Question 8

The recipe for omelettes is shown.

I have 200 eggs, How many omelettes can I make?

CORRECT ANSWER
66
66.67
EDDIE SAYS
This is once again a cheeky little divide question. I really want to know hoe many 3s go into 200. 200 ÷ 3 = 66.67 The common mistake here is to say that I can make 66.67 omelettes. Can you make 2/3 of an omelette? This is one of those where you have to round down.
  • Question 9

The recipe for omelettes is shown.

The ingredients I have are shown below. For each one say how many omelettes I can make.

You also need to say what the maximum number of omelettes I can make overall.

CORRECT ANSWER
 Number of omelettes
20 eggs
100g of butter
Max Omelettes?
EDDIE SAYS
If I have 20 eggs, I can make 20 ÷ 3 = 6.7 omelettes. This needs to be rounded down to 6. If I have 100 g of butter, I can make 100 ÷20 = 5 omelettes. We need to say how many we can make overall. This is always the lower<\b> of the values.
  • Question 10

The recipe for omelettes is shown.

Match the ingredients to the amount of omelettes I can make.

CORRECT ANSWER

Column A

Column B

10 eggs
3 omelettes
48 eggs
16 omelettes
40g of butter
2 omelettes
200g of butter
10 omelettes
EDDIE SAYS
All you have to do is a nice little bit of division. For example, If I had 15 eggs, I could make (15 ÷ 3) 5 omelettes
---- OR ----

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