Percentage (Word Problems)

Percentage

(Word Problems)

Chapter (page 72)

Finding percentage of a whole

John competes in a triathlon. He runs 9/20 of the distance and swims another 3/8 of the distance. He cycles the rest of the distance. What percentage of the distance does John cycle?

Multiple Choice

John competes in a triathlon. He runs 9/20 of the distance and swims another 3/8 of the distance. He cycles the rest of the distance.

What percentage of the distance does John cycle?

• 45%

• 82.5%

• 37.5%

• 17.5%

Mr. Lim puts $20 000 in a fixed deposit account which has an interest rate of 2% per year. How much money will Mr. Lim have in the account after 1 year?

Multiple Choice

Mr. Lim puts $20 000 in a fixed deposit account which has an interest rate of 2% per year. How much money will Mr. Lim have in the account after 1 year?

• $20 400

• $24 000

• $400

• $0.02

Did you know?

Interest is usually given for depositing or investing money in an account, such as a bank account. It is usually a percentage of the original amount.

Rita bought a watch that cost $140. In addition, she had a 10% sales tax.

a.) How much was the sales tax?

b.) How much did Rita pay for the watch?

Multiple Choice

Rita bought a watch that cost $140. In addition, she had a 10% sales tax.

How much was the sales tax?

• $140

• $14

• $154

• $126

Multiple Choice

Rita bought a watch that cost $140. In addition, she had a 10% sales tax.

How much did Rita pay for the watch?

• $140

• $14

• $154

• $126

Did you know?

A sales tax is a government tax that we pay when we buy some items or when we pay for a service. In some countries, this tax can be known by other names such as Goods and Services Tax (GST) or Value Added Tax (VAT).

The usual price of a board game was $40. At a toy fair, Jasmine bought the board game at a discount of 20%. What was the selling price of the board game at the fair?

Multiple Choice

The usual price of a board game was $40. At a toy fair, Jasmine bought the board game at a discount of 20%. What was the selling price of the board game at the fair?

• $32

• $48

• $8

• $40

Did you know?

A discount is a decrease in the usual or original price of an item.

Finding the whole

A dining table was sold at $320 after a 20% discount. What was the original price of the dining table?

Multiple Choice

A dining table was sold at $320 after a 20% discount. What was the original price of the dining table?

• $80

• $4

• $400

• $480

Finding percentage change

The usual price of a shirt was $50. Tom bought the shirt for $30 during a sale. What was the percentage discount on the shirt?

Multiple Choice

The usual price of a shirt was $50. Tom bought the shirt for $30 during a sale.

What was the percentage discount on the shirt?

• 20%

• 40%

• 60%

• 80%

The enrollment in a school last year was 2000 pupils. The enrollment this year is 2300. What is the percentage increase in the enrollment?

Multiple Choice

The enrollment in a school last year was 2000 pupils. The enrollment this year is 2300.

What is the percentage increase in the enrollment?

• 15%

• 30%

• 300%

• 2300%

Finding percentage of a remainder

Madam Lim bake 200 muffins. She gave 20% of the muffins to her neighbor. She gave 50% of the remainder to her two children. How many muffins did Madam Lim have left?

Multiple Choice

Madam Lim bake 200 muffins. She gave 20% of the muffins to her neighbor. She gave 50% of the remainder to her two children.

How many muffins did Madam Lim have left?

• 40

• 160

• 50

• 80

On Your Own (page 78)

Be ready with your answers.

This activity will be recorded as your 1st Performance Work for Midterm 2nd Sem.

Multiple Choice

Sally buys some fish for her aquarium,  $\frac{6}{25}$   of the fish are clownfish,  $\frac{13}{40}$   of the fish are butterflyfish. The rest of the fish are seahorses. What percentage of the fish are seahorses?

• 56.5%

• 43.5%

Multiple Choice

Peter bought a computer which cost $2499. In addition, he had to pay a 10% sales tax on it. How much did Peter pay altogether for the computer?

• $2748.9

• $2249.1

Multiple Choice

You can use calculator for this question.

The usual price of a car was $35 050. Mr Sarip bought the car at a discount of 5% during a sale. How much did Mr Sarip pay for the car?

• $33 297.50

• $36 802.5

Multiple Choice

You can use calculator for this question.

Suresh invests $45 015 in a fixed deposit account which has an interest rate of 4% per year. How much money will Suresh have in the account after 1 year?

• $43 214.40

• $46 815.60

Multiple Choice

An oven was sold for $900 after a 10% discount was given. What was the original price of the oven?

• $1000

• $9000

Multiple Choice

Anna travels from Town A to Town B. She takes an airplane for 75% of the journey. She travels the remaining 750 km by train. What is the distance between Town A and Town B?

• 25%

• 3000km

Multiple Choice

Mr Lee bought a washing machine. He had to pay an additional $90, which was a 15% sales tax. How much did the washing maching cost?

• $105

• $600

Multiple Choice

You can use calculator for this question.

On Monday, there were 150 people in a library. On Tuesday, there were 245 people in the library. What was the percentage increase in the number of people? Round your answer to 1 decimal place.

• 63.3%

• 36.7%