Chapters

Exercise 1
Exercise 2
Exercise 3
Exercise 4
Exercise 5
Exercise 6
Exercise 7
Exercise 8
Solution of exercise 1
Solution of exercise 2
Solution of exercise 3
Solution of exercise 4
Solution of exercise 5
Solution of exercise 6
Solution of exercise 7
Solution of exercise 8

Exercise 1

Of the $800$ students at a school, $600$ attend a field trip. What is the percentage of students who did not remain at school?

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Exercise 2

When purchasing a vehicle priced at $8,800$ dollars, the sales clerk awards a discount of $7.5$ %. How much will the final cost of the vehicle be?

Exercise 3

The price of a computer is $1,200$ . How much will a customer need to pay in total if the tax is $16$ %?

Exercise 4

If a monitor is priced at $450$ dollars and the store manager awards a discount of $8$ %, how much will the customer pay?

Exercise 5

An item is sold for $15$ % more than it cost the retailer to acquire the item. If it was sold to the retailer for $80$ dollars, determine the price that the customer paid.

Exercise 6

What is the price that a retailer has to charge on an item acquired for $180$ dollars in order to make a profit of $10$ %?

Exercise 7

What is the sale price that a retailer has to put on an article originally priced at $280$ dollars to reduce it by $12$ % for an upcoming sale?

Exercise 8

An object is sold during a " $20$ % off" sale. Find the sale price of that item if its original price was $150$ dollars.

Solution of exercise 1

Of the $800$ students at a school, $600$ attend a field trip. What is the percentage of students who did not remain at school?

$\frac { 800 }{ 100 } = \frac { 600 }{ x } \qquad x = \frac { 600 \times 100 }{ 800 } = 75$ %

Solution of exercise 2

When purchasing a vehicle priced at $8,800$ dollars, the sales clerk awards a discount of $7.5%$ . How much will the final cost of the vehicle be?

$100 - 7.5 = 92.5$

$\frac { 100 }{ 8,800 } = \frac { 92.5 }{ x } \qquad x = \frac { 8,800 \times 92.5 }{ 100 } = 8,140$ dollars

Solution of exercise 3

The price of a computer is $1,200$ . How much will a customer need to pay in total if the tax is $16$ %?

$\frac { 100 }{ 1,200 } = \frac { 116 }{ x } \qquad x = \frac { 1,200 \times 116 }{ 100 } = 1,392$ dollars

Solution of exercise 4

If a monitor is priced at $450$ dollars and the store manager awards a discount of $8$ %, how much will the customer pay?

$\frac { 100 }{ 450 } = \frac { 92 }{ x } \qquad x = \frac { 450 \times 92 }{ 100 } = 414$ dollars

Solution of exercise 5

An item is sold for $15$ % more than it cost the retailer to acquire the item. If it was sold to the retailer for $80$ dollars, determine the price that the customer paid.

$\frac { 100 }{ 80 } = \frac { 115 }{ x } \qquad x = \frac { 115 \times 80 }{ 100 } = 92$ dollars

Solution of exercise 6

What is the price that a retailer has to charge on an item acquired for $180$ dollars in order to make a profit of $10$ %?

Sell	Buy
$110$ dollars	$100$ dollars
$x$	$180$ dollars

$\frac { 100 }{ x } = \frac { 100 }{ 180 } \qquad x = \frac { 180 \times 110 }{ 100 } = 198$ dollars

Solution of exercise 7

What is the sale price that a retailer has to put on an article originally priced at $280$ dollars to reduce it by $12$ % for an upcoming sale?

Sell	Buy
$100$ dollars	$112$ dollars
$x$	$280$ dollars

$\frac { 100 }{ x } = \frac { 112 }{ 280 } \qquad x = \frac { 280 \times 100 }{ 112 } = 250$ dollars

Solution of exercise 8

An object is sold during a " $20$ % off" sale. Find the sale price of that item if its original price was $150$ dollars.

$\frac { 100 }{ 150 } = \frac { 80 }{ x } \qquad x = \frac { 150 \times 80 }{ 100 } = 120$ dollars

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Percentage Word Problems

Exercise 1

Exercise 2

Exercise 3

Exercise 4

Exercise 5

Exercise 6

Exercise 7

Exercise 8

Solution of exercise 1

Solution of exercise 2

Solution of exercise 3

Solution of exercise 4

Solution of exercise 5

Solution of exercise 6

Solution of exercise 7

Solution of exercise 8

Ratio

Simple Interest

Percentage

Inverse Proportions

Fourth, Mean and Third Proportional

Direct Proportions

Proportions

Ratio Formulas

Simple Interest Word Problems

Ratio Word Problems

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Percentage Word Problems

Exercise 1

Exercise 2

Exercise 3

Exercise 4

Exercise 5

Exercise 6

Exercise 7

Exercise 8

Solution of exercise 1

Solution of exercise 2

Solution of exercise 3

Solution of exercise 4

Solution of exercise 5

Solution of exercise 6

Solution of exercise 7

Solution of exercise 8

Theory

Ratio

Simple Interest

Percentage

Inverse Proportions

Fourth, Mean and Third Proportional

Direct Proportions

Proportions

Formulas

Ratio Formulas

Exercises

Simple Interest Word Problems

Ratio Word Problems

Cancel reply