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- GCE O-Level Maths
- Ratios, Rates, and Proportions

# Rates

- Intro Lesson: a2:53
- Intro Lesson: b3:40
- Lesson: 1a1:17
- Lesson: 1b1:10
- Lesson: 1c1:19
- Lesson: 2a2:56
- Lesson: 2b2:14
- Lesson: 3a3:55
- Lesson: 3b7:26
- Lesson: 3c1:07

### Rates

#### Lessons

- Introductiona)Ratios, Rates, and Proportions
- What are they?
- How are they different from each other?

b)Unit rates- What is a unit rate?
- How to find the unit rate?

- 1.Find the unit rate.a)$4.50 for 2 lb of broccoli.b)5 pizzas for 12 people.c)2 goals in a 90 minute long soccer game.
- 2.Find the unit price and identify the best buy.a)
No. of Units

Total Price

Unit Price

250 ml

$3.50

400 ml

$4.50

550 ml

$6.60

b)No. of Units

Total Price

Unit Price

300 g

$5.20

550 g

$9.20

1 kg

$15.50

- 3.
Runner

Distance (km)

Time (min)

Ann

15

90

Katie

2

120

Dora

3

180

a)Determine the distance each runner ran per minute.b)Express your answers in part a) in km/h.c)Who is the fastest runner?