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

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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
Correct answer: £10.80
£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
Correct answer: 96 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
Correct answer: 100 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?
Correct answer: £13.50
£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?
Correct answer: $142.50
$190.00
$285.00
$88.81

5 Questions

Q1.
Fill in the gap: conversion rates are _______________.
Correct answer: bi-directional
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
Correct answer: Miles per kilometre
Pounds per minute
Q3.
Given that there are 1440 minutes in a day, how many days is 10080 minutes?
5
6
Correct answer: 7
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
Correct answer: €759.00
Q5.
Martin went on holiday to Sweden. The exchange rate is £1 to 1.15 euros (€). He receives 414 euros. How many pounds did he exchange?
£260.00
Correct answer: £360.00
£415.15
£476.10

Lesson appears in

UnitMaths / Ratio, real life graphs, and rates of change