Primary 6 Mathematics Tutorial 3.2

Name:_________________________ Date:_______________

Percentage (3.2)

A. Express each of the following as a fraction in its simplest form.

1. 15% 3. 8%

2. 58% 4. 75%

B. Express each of the following as a decimal.

1. 13% 3. 27%

2. 72% 4. 85%

C. Express each of the following as a percentage.

1. 7 3. 34
12 40

2. 0.48 4. 0.72

D. Solve the problems below.

1. The construction of the first 45% of a road costed $250 000. The remaining part of the road costed 20% more to build. What was the total cost of the road?

2. Ali spent $600 to make 7500 sticks of satay. He sold each of the satay at $0.22. If Ali wants to increase his profit by another 25%, what price must he sell each stick of satay?

3. Mr Tan's salary is 10% less than his wife's salary. His wife earns $45600 a year. What is his monthly salary?

4. A hi-fi set was sold for $3550. If the profit was 25%, what was the cost price?

5. A school has 2400 students. There are 8% more girls than boys. If the principal wants to have only 3% more girls than boys but maintain the school enrolment, how many girls must be replaced by boys?

6. In a test there were 120 questions. Limin answered 85% of the questions and obtained a score of 80%. How many of those questions she answered were incorrect?

7. In a box there were 16% more green buttons than red buttons. If there were 84 red buttons, how many buttons were there altogether?

8. There are 60 000 people in a town. 70% of the population are adults. If 2000 babies were born and 2000 adults died, what is the new percentage of adults in the town?

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Name:_________________________		Date:_______________

Percentage (3.2)


A. Express each of the following as a fraction in its simplest form.

1.	15%	3.	8%

2.	58%	4.	75%

B. Express each of the following as a decimal.

1.	13%	3.	27%

2.	72%	4.	85%

C. Express each of the following as a percentage.

1.	7	3.	34
	12		40

2.	0.48	4.	0.72

D. Solve the problems below.

1.	The construction of the first 45% of a road costed $250 000. The remaining part of the road costed 20% more to build. What was the total cost of the road?
2.	Ali spent $600 to make 7500 sticks of satay. He sold each of the satay at $0.22. If Ali wants to increase his profit by another 25%, what price must he sell each stick of satay?
3.	Mr Tan's salary is 10% less than his wife's salary. His wife earns $45600 a year. What is his monthly salary?
4.	A hi-fi set was sold for $3550. If the profit was 25%, what was the cost price?
5.	A school has 2400 students. There are 8% more girls than boys. If the principal wants to have only 3% more girls than boys but maintain the school enrolment, how many girls must be replaced by boys?
6.	In a test there were 120 questions. Limin answered 85% of the questions and obtained a score of 80%. How many of those questions she answered were incorrect?
7.	In a box there were 16% more green buttons than red buttons. If there were 84 red buttons, how many buttons were there altogether?
8.	There are 60 000 people in a town. 70% of the population are adults. If 2000 babies were born and 2000 adults died, what is the new percentage of adults in the town?