# Conversion rates

## Lesson details

### Key learning points

1. In this lesson, we will learn about conversion rates that are in the same ratio, and those that change. We will model problems and solutions involving conversion rates.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

## Video

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## Worksheet

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## Starter quiz

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### 5 Questions

Q1.
Three of the same pen cost £5.40. How much do six of the same pen cost?
£10.40
£9.00
£9.80
Q2.
Pete is painting the walls of his bedroom. So far he has used 5 litres of paint and covered 24 m² of wall. What area will 20 litres cover?
100 m²
48 m²
72 m²
Q3.
Pete is painting the walls of his bedroom. So far he has used 5 litres of paint and covered 24 m² of wall. How much paint will 480 m² of wall require?
10 litres
20 litres
50 litres
Q4.
Ribbon is sold at a rate of £3 per 2 m. How much would I pay for 9 m of ribbon?
£15.00
£27.00
£33.00
Q5.
Amara is going on holiday. For every £15 she exchanges, she will receives \$19. How much money will she get if she exchanges £112.50?
\$190.00
\$285.00
\$88.81

## Exit quiz

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### 5 Questions

Q1.
Fill in the gap: conversion rates are _______________.
only one way
small
uni-directional
Q2.
Which of the following is an example of a conversion rate that is is a constant ratio?
Dollars per pound
Miles per gallon
Pounds per minute
Q3.
Given that there are 1440 minutes in a day, how many days is 10080 minutes?
5
6
8
Q4.
Martin went on holiday to Sweden. The exchange rate is £1 to 1.15 euros (€). He exchanges £660 into euros. How many euros should he receive?
€573.91
€658.85
€661.15