Test Preparation on $ and % and fraction and decimals

10% of 20 students in the class passed the test. How many students are there in the class?

What is 15% of $100

To find out the actual GST from the value that has GST, you divide the value by 11

Mr Tan wants to sell his car for $5000. If he adds GST, what is the total selling price?

Mr Tan wants to sell his phone for $2000. If he adds GST, what is the total selling price?

To remove GST from the value of something, you divide the value by 1.1

Is this a correct conversion of mixed numbers to fractions to decimals ?

Fraction x 100 → Percentage%

123% = 1.23

$4 + GST = $4.40

4.5% = 0.0045

An apple price (including GST) is $5.50. Without GST, the apple costs $5.00

245% = 245/100

To add on GST onto a value, you multiple by 1.1

12% = 12/100

The T-shirt is sell at a discounted price of $20. It was originally $80. What is the discount percentage?

50% of 12 students passed the test. How many students failed the test?

12% = 0.12

34% = 0.34

What is 15% of $200

If I save $100 into the bank account which will earn me 1% at the end. How much will my total savings be?

0.312 = 31.2%

123.456% = 123.456

GST = 10%