NF7 One number as a percentage of another

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From users who are members of Skills Audits for Maths and Stats :

Lauren Desoysa	said	Ready to use	1 year, 1 month ago
Megan Oliver	said	Needs to be tested	1 year, 2 months ago

From users who are not members of Skills Audits for Maths and Stats :

Emam Abdullaziz

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Ready to use

3 months, 3 weeks ago

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Emam Abdullaziz 3 months, 3 weeks ago

Gave some feedback: Ready to use

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Will Morgan 1 year ago

Published this.

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Lauren Desoysa 1 year, 1 month ago

Gave some feedback: Ready to use

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Megan Oliver 1 year, 2 months ago

Gave some feedback: Needs to be tested

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Megan Oliver 1 year, 2 months ago

Created this as a copy of Percentages: Basic Calculations 3 - In context.

Name	Status	Author	Last Modified
NC NA Convert a proportion to a percentage (10+)	Ready to use	Adelle Colbourn	25/07/2023 02:58
Percentages: Basic Calculations 3 - In context	Ready to use	Ruth Hand	18/01/2023 14:24
NF7 One number as a percentage of another	Ready to use	Megan Oliver	05/01/2025 09:16

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Question statement

{num_students} of the {class_size} students enrolled on a course are international students. What percentage are 'home' students?

Give any introductory information the student needs.

			Name	Type	Generated Value

num_students	rational	21
class_size	integer	140
per	integer	15

Automatically regenerate variables?

Name

Data type

Value

xxxxxxxxxx
 
per*class_size/100
​

JME function reference

Description

The number of students in the class who do speak a language other than English.

Describe what this variable represents, and list any assumptions made about its value.

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Generated value: `rational`

← Depends on:

class_size
per

This variable doesn't seem to be used anywhere.

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$\var{class_size-num_students}\%$

Marks: Distractor Message:
$\var{num_students*100/class_size}\%$

Marks: Distractor Message:
$\var{num_students}\%$

Marks: Distractor Message:
$\var{(class_size-num_students)/class_size*100}\%$

Marks: Distractor Message:

Advice

First work out the number of students who are not international. In this case it is {class_size} - {num_students} = {class_size-num_students} students.

Then write this as a fraction out of {class_size}. $\frac{\var{class_size-num_students}} {\var{class_size}}$

Then convert this to a percentage. You should put this fraction into your calculator and then multiply by 100:

$\frac{\var{class_size-num_students}} {\var{class_size}} \times 100 = \var{(class_size-num_students)/class_size*100}\%$

Use this link to find resources to help you revise how to calculate percentages.

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Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

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Emam Abdullaziz 3 months, 3 weeks ago

Will Morgan 1 year ago

Lauren Desoysa 1 year, 1 month ago

Megan Oliver 1 year, 2 months ago

Megan Oliver 1 year, 2 months ago

Error in variable testing condition

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Generated value: `rational`

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NF7 One number as a percentage of another

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

Feedback

History

Comment

Checkpoint description

Emam Abdullaziz 3 months, 3 weeks ago

Will Morgan 1 year ago

Lauren Desoysa 1 year, 1 month ago

Megan Oliver 1 year, 2 months ago

Megan Oliver 1 year, 2 months ago

Error in variable testing condition

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Generated value: rational

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Generated value: `rational`