Percentages 1

• Mathematics
• Upper Secondary (Key Stage 4)
• GCSE

Percentages 1

Devices at the ready please

If the exchange rate from pounds to euros is 1:1.2, how many euros do you get for £150?

1. 120 euros
2. 160 euros
3. 180 euros
4. 130 euros

If you exchange £200 for dollars at a rate of 1:1.3, how much would you get in dollars?

1. $260
2. $220
3. $240
4. $180

What's in a....?

The next few questions are about measurements (hrs, meters, litres...)

How many hours are in a day?

1. 12 hrs
2. 24 hrs
3. 60 hrs
4. 10 hrs

How many centimeters are in a meter?

1. 50 cm
2. 100 cm
3. 200 cm
4. 10 cm

How many minutes in 1hr?

1. 100 mins
2. 10 mins
3. 12 mins
4. 60 mins

How many milliliters are in a liter?

1. 500 ml
2. 1000 ml
3. 250 ml
4. 2000 ml

How many pennies in a pound?

1. 50 cm
2. 100 cm
3. 200 cm
4. 10 cm

How many grams are in a kilogram?

1. 250 g
2. 2000 g
3. 1000 g
4. 500 g

How much of a day is 12 hours?

How much of a day is 12 hours?

How much of £1 is 20p?

6 Questions

Are you Read?

How much of an hour is 15mins?

1. ​4​​1​​
2. ​2​​1​​
3. ​5​​1​​
4. ​3​​1​​

How much of an hour is 20mins?

1. ​4​​1​​
2. ​2​​1​​
3. ​5​​1​​
4. ​3​​1​​

How much of an hour is 30mins?

1. ​4​​1​​
2. ​2​​1​​
3. ​5​​1​​
4. ​3​​1​​

How much of an hour is 12mins?

1. ​4​​1​​
2. ​2​​1​​
3. ​5​​1​​
4. ​3​​1​​

How much of an hour is 45mins?

1. ​4​​3​​
2. ​2​​1​​
3. ​5​​3​​
4. ​3​​2​​

How much of an hour is 40mins?

1. ​4​​3​​
2. ​2​​1​​
3. ​5​​3​​
4. ​3​​2​​

One thing as a Percentage of another

What percentage of an hour is 30mins?

What percentage of an hour is 15mins?

What percentage of an hour is 45mins?

What percentage of an hour is 20mins?

What percentage of an hour is 12mins?

What percentage of an hour is 5mins?

Example

One thing as a Percentage of another

What percentage of an hour is 30mins? = 30/60 *100 = 50%

What percentage of an hour is 15mins? = 30/60 *100 = 25%

What percentage of an hour is 45mins? = 30/60 *100 = 75%

What percentage of an hour is 20mins? = 20/60 *100 = 33.3%

What percentage of an hour is 12mins? = 12/60 *100 = 20%

What percentage of an hour is 5mins? = 5/60 *100 = 8.3%

7 Questions

Are you Read?

What percentage of £1 is 40p?

What percentage of £1 is 65p?

What percentage of £5 is 50p?

What percentage of £5 is £1.50?

What percentage of £5 is £3.50?

What percentage of £5 is £2.25?

What percentage of £5 is £1.55?

One thing as a Percentage of another

What percentage of a day is 6hrs?

What percentage of a day is 18hrs?

What percentage of a day is 3hrs?

What percentage of a km is 800m?

What percentage of a km is 965m?

What percentage of 400m is 365m?

One thing as a Percentage of another

What percentage of a day is 6hrs? = 6/24 *100 = 25%

What percentage of a day is 18hrs? = 18/24 *100 = 75%

What percentage of a day is 3hrs? = 3/24 *100 = 12.5%

What percentage of a km is 800m? = 800/1000= 80/100 = 80%

What percentage of a km is 965m?=965/1000 =96.5/100 =96.5%

What percentage of 400m is 365m? = 365/400 *100 = 91.25%

Percentages 2 Profit / Loss

How do we calculate the percentage change?

5 questions - Are you Ready?

What is 10% of 350?

1. 50
2. 25
3. 35
4. 40

Find 25% of 80.

1. 40
2. 30
3. 15
4. 20

Calculate 20% of 150.

1. 40
2. 30
3. 50
4. 25

Determine 5% of 400.

1. 30
2. 20
3. 15
4. 40

What is 15% of 200?

1. 40
2. 30
3. 25
4. 50

Profit/loss

Pia brought a new Jumper for £30, a year later she sold it on Vinted for £20.

What was her percentage loss?

Profit/loss

Ana brought a car for £30,000, 5 years later she sold it for £22,000.

What was the percentage loss of value on the car?

Profit/loss

Rosie brought a pair of Jimmy Choo shoes in the sale for £150.

Then she sold them for £185.

What was her percentage profit?

Profit/loss

Honor brought a Large pack of Haribo for £2.50.

She repackaged them into 10 small sweetie bags and sold them for 50p each.

What was Honor's percentage profit?

A company bought a product for $200 and sold it for $250. What is the percentage profit?

1. 30%
2. 15%
3. 20%
4. 25%

If a bike is bought for $300 and sold for $240, what is the percentage loss?

1. 15%
2. 30%
3. 20%
4. 25%

A shopkeeper sells a shirt for $40 which he bought for $30. What is the percentage profit?

1. 40%
2. 20%
3. 25%
4. 33.33%

A phone was bought for $500 and sold for $600. What is the percentage profit?

1. 25%
2. 20%
3. 15%
4. 30%

If a book is bought for $80 and sold for $64, what is the percentage loss?

1. 25%
2. 20%
3. 30%
4. 15%

Mrs Jones buys a bag of 18 lollies for £2.
She sells the lollies for 20p each.
What percentage profit did she make?