Unit Rate Worksheet

**Page 1**

1.

Jack bought 4 pounds of grapes for $ 20. Find the unit price.

a. | $ 20 | ||

b. | $ 15 | ||

c. | $ 0.5 | ||

d. | $ 5 |

Let the unit price of grapes be

[Both the fractions are proportional.]

[Cross multiply.]

= 5

The unit price of grapes = $5.

Correct answer : (4)

2.

Dorothy bought 4 boxes of chocolates for $12. Find the unit price.

a. | $ 3 | ||

b. | $ 30 | ||

c. | $ 48 | ||

d. | $ 32 |

Let the unit price of chocolates be

[Both the fractions are proportional.]

[Cross multiply.]

= 3

Correct answer : (1)

3.

Which would be the best buy?

a. | 7 pencils for $1.40 | ||

b. | 6 pencils for $1.35 | ||

c. | 15 pencils for $13.65 | ||

d. | 8 pencils for $1.70 |

Unit price of a pencil =

In case of '6 pencils for $1.35', the unit cost =

In case of '15 pencils for $13.65', the unit cost =

In case of '8 pencils for $1.70', the unit cost =

In case of '7 pencils for $1.40', the unit cost =

Therefore, '7 pencils for $1.40' is the best buy.

Correct answer : (1)

4.

Identify the best deal.

a. | 27 ounces of nacho chips for $3.51 | ||

b. | 10 ounces of nacho chips for $1.30 | ||

c. | 18 ounces of nacho chips for $2.16 | ||

d. | 25 ounces of nacho chips for $2.75 |

Unit price of an ounce of nacho chips =

In case of '27 ounces of nacho chips for $3.51', the unit cost =

In case of '10 ounces of nacho chips for $1.30', the unit cost =

In case of '18 ounces of nacho chips for $2.16', the unit cost =

In case of '25 ounces of nacho chips for $2.75', the unit cost =

Therefore, '25 ounces of nacho chips for $2.75' is the best deal.

Correct answer : (4)

5.

Sarah wants to buy tomatoes. Which is the best deal?

a. | 15 kg for $32.25 | ||

b. | 4 kg for $8.72 | ||

c. | 2 kg for $4.32 | ||

d. | 5 kg for $10.85 |

Unit price of tomatoes =

In case of '4 kg for $8.72', the unit cost =

In case of '2 kg for $4.32', the unit cost =

In case of '5 kg for $10.85', the unit cost =

In case of '15 kg for $32.25', the unit cost =

Therefore, '15 kg for $32.25' is the best deal.

Correct answer : (1)

6.

Holly needs to buy some cloth. The following deals are available at various stores. Choose the best deal.

a. | $16.26 per 6 yd | ||

b. | $13.85 per 5 yd | ||

c. | $11.04 per 4 yd | ||

d. | $19.11 per 7 yd |

Unit price of the cloth =

In case of '$13.85 per 5 yd', the unit cost =

In case of '$19.11 per 7 yd', the unit cost =

In case of '$16.26 per 6 yd', the unit cost =

In case of '$11.04 per 4 yd', the unit cost =

Therefore, '$16.26 per 6 yd' is the best deal.

Correct answer : (1)

7.

Choose the best deal for buying oranges.

a. | $152.16 for 24 dozens | ||

b. | $133.77 for 21 dozens | ||

c. | $139.7 for 22 dozens | ||

d. | $158 for 25 dozens |

Unit price of orange =

In case of '$133.77 for 21 dozens', the unit cost =

In case of '$139.7 for 22 dozens', the unit cost =

In case of '$152.16 for 24 dozens', the unit cost =

In case of '$158 for 25 dozens', the unit cost =

Therefore, '$158 for 25 dozens' is the best deal.

Correct answer : (4)

8.

Andre drives a bike for 4 hours covering 160 km. Find the distance covered by him in 7 hours.

a. | 28 km | ||

b. | 16 km | ||

c. | 160 km | ||

d. | 280 km |

The distance covered in 1 hour = 160 ÷ 4 = 40 km.

So, the distance covered in 7 hours = 40 × 7 = 280 km.

Correct answer : (4)

9.

A 2 fl oz bottle of orange juice costs $8 and a 4 fl oz. bottle of orange juice costs $12. Which is a better buy?

a. | I don′t know. | ||

b. | 2 fl oz. | ||

c. | both have the same unit rate | ||

d. | 4 fl oz. |

The unit price of 4 fl oz. bottle of orange juice =

3 < 4

[Compare the two prices.]

It is better to buy 4 fl oz. bottle of orange juice.

Correct answer : (4)

10.

A truck can travel 210 km in 3 hours. What is its average speed?

a. | 70 km/hr | ||

b. | 65 km/hr | ||

c. | 80 km/hr | ||

d. | 60 km/hr |

The average speed of the truck =

=

[Divide both the numerator and the denominator by the denominator.]

The average speed of the truck is 70 km per hr.

Correct answer : (1)