Percentages
Interest
Markups, Discounts & Commissions
Per
100

 What is 10% of $200

$20

100

If I borrowed $100 for 1 year at 10% interest per annum how much interest would I pay?

$10.00

100

A phone shop buys a second hand iPhone 13 for $800 and marks it up by 50%. What is the price of the phone at the shop?

$1,200

100

How many weeks are there NOT in a month

4

200

Write 3/4 as a percentage

75%

200

If I borowwed $200 for 2 years at 10% interest Per annum how much interest would I pay?

$40

200

A homewares shop marks up SELLS scented candles for $20. They mark their goods up by 100%. What did the BUY the candles for?

$10

200

Coles is selling oranges for $2 per kg, or a 3kg bag for $5.50. Which is the better deal? 

$5.50 for 3kg

300

Write  1/3 as a decimal and a percentage

0.33... 33.33..%

300

A deposit in the bank of $10,000 at 7% interest per annum for 5 years would earn how much interest? (The interest is paid every year, not compounded)

$3,500

300

A retailer buys a Tier hoodie (wholesale) for $US100. She marks it up by 50%, then marks it down by 50%. How much profit or loss will the retailer make on the sale?

$25 loss

300

Coles sells a box of 24 375ml cans of Pepsi for $11.75 and 1.25L bottles of Coke for $2:00 which is better value?

Pepsi $1.31 per litre

Coke $1.60  per litre

400

What is 12.5% as a fraction?


 1/8 

400

I borrowed $1,000 for

1 1/2

 years at 10% interest pa (per annum) (simple interest) How much will I pay back at the end of the loan?

$1,000 + $150 = $1,150

400

Molly sells a car for Amahle. She is paid commission of $1,000 + 7.5% of the sale price. Molly receives $2,500 in total. How much was the car sold for?

$20,000

400

Ballaarat is 125km from Melbourne, it takes you 75 minutes to drive there. What is your average speed?

100 km/hr

500

Joel earns $24.50 per hour for a 38 hour week. How much does he earn:

Per week

Per fortnight

Per month

Per year

$931 per week

$1,862 per fortnight

$4,034.33 per month

$48,412 per year

500

I have a $1,000 credit card debt, the bank charges me 18% interest per annum compounded monthly. If I pay nothing off the credit card, how much will I owe the bank at the end of the year?

$1,195.62

500

A pair of runners wholesales for $110,

The retailer marks them up by 100%

There is a sale 20% off store-wide

Then a 50% discount is applied for remaindered stock

Finally a 5% tax is put on the final price

How much did I pay for the runners

$92.40

500

The speed of light is

3 xx 10^8 

metres per second. Light takes 8 minutes to get from the sun to earth, how many metres away is the sun?

1.44 xx 10^11 Metres

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