Decimal0.37

percentagefraction

0.37×100

Fraction35

Decimalpercentage

3÷5 3÷5×100

Percentage87%

Decimalfraction

87÷100

37% 37100

0.660%

0.87 87100

67%67% decimal decimal

0.60.6 fraction fraction

3/83/8 decimal decimal

57%57% decimal decimal

7/87/8 percentagepercentage

45%45% fraction fraction

1/31/3 percentagepercentage

58%58% fraction fraction

50% of 50050% of 500

25% of 40025% of 400

80% of 20080% of 200

75% of 75% of 10001000

10% of 32010% of 320

60% of 1560% of 15

25% of 825% of 8

12.5% of 12.5% of 800800

The petrol price has increased by The petrol price has increased by 20% in the past year. If petrol cost 20% in the past year. If petrol cost $1.67 per litre last year. How much $1.67 per litre last year. How much does it cost this year?does it cost this year?

Taotao wants to buy a new plasma Taotao wants to buy a new plasma TV which costs $2080. Harvey TV which costs $2080. Harvey Norman is having a 20% discount Norman is having a 20% discount on all TVs. How much is the price on all TVs. How much is the price after the discount?after the discount?

House price rose by 37% over the past 4 House price rose by 37% over the past 4 years. The price now is $290,000. What is years. The price now is $290,000. What is the price 4 years ago?the price 4 years ago?

Let Let AA be the house price 4 years ago. be the house price 4 years ago.

A × (1+37 %)= 290,000

A = 290,000÷(1+37%)

A = 290,000÷1.37

A = 211,000

OldNew

Increase by a% ×(1+a%)

÷(1+a%)

OldNew

Decrease by a% ×(1-a%)

÷(1-a%)

Who gets the cheapest pair of Who gets the cheapest pair of jeans?jeans?

Leah goes to Just Jeans. Original price Leah goes to Just Jeans. Original price $180. The shop is having a 20% discount.$180. The shop is having a 20% discount.

Sam goes to JJs. The price is $140 but Sam goes to JJs. The price is $140 but doesn’t include tax. He needs to add 8% doesn’t include tax. He needs to add 8% tax to the price.tax to the price.

Georgia goes to Jeanswest. She got 20$ off Georgia goes to Jeanswest. She got 20$ off the original $160the original $160

Who has the highest original price Who has the highest original price for the bracelet?for the bracelet?

Charlotte bought a bracelet for $200 Charlotte bought a bracelet for $200 after 15% discount.after 15% discount.

Christine bought a bracelet for $180 Christine bought a bracelet for $180 after 10% discount.after 10% discount.

Karen bought a bracelet for $175 Karen bought a bracelet for $175 after 5% discount.after 5% discount.