Name:    Lesson 3.3: Exploring Ratios with Three Terms

1.

Select the three term ratio that describes the number of blue stars to the number of yellow stars to the number of red stars.

 a. 16 : 4 : 10 b. 12 : 8 : 2 c. 9 : 16 : 3 d. 12 : 16 : 4

2.

Refer to the diagram in question 1. Select the three term ratio that is equivalent to the number of blue stars to the number of yellow stars to the number of red stars.
 a. 3 : 8 : 3 b. 6 : 4 : 2 c. 3 : 4 : 1 d. 3 : 6 : 1

3.

Use the ratio of the blue stars to yellow stars to red stars to determine the missing term in this equivalent ratio.
30 : _ : 10
 a. 40 b. 16 c. 28 d. 60

4.

Carly is making bead bracelets. Each bracelet has red, blue and orange beads in the ratio 4 : 1 : 3. One bracelet has 12 red beads. How many blue beads and orange beads does the bracelet have?

 a. 4 blue, 8 orange c. 2 blue, 9 orange b. 3 blue, 9 orange d. 5 blue, 3 orange

5.

Carly is also making bead necklaces using the same ratio of red, blue, and orange beads as the bracelets. One necklace has 40 beads altogether. How many of each colour beads does the necklace have?
 a. 20 red, 5 blue, 15 orange c. 10 red, 15 blue, 5 orange b. 12 red, 5 blue, 10 orange d. 5 red, 10 blue, 20 orange

6.

Determine the missing terms.

16 : _ : 4 = 4 : 5 : _
 a. 18; 3 b. 10; 1 c. 20; 3 d. 20; 1

7.

Determine the missing terms.

2 : _ : 3 = 20 : 140 : _
 a. 7; 15 b. 5; 2 c. 5; 15 d. 14; 30

8.

Determine the missing terms.

_ : 1 : 3 = 60 : 12 : _
 a. 4; 36 b. 5; 30 c. 5; 36 d. 5; 25

9.

Determine the missing terms.

16 : _ : 8 = 2 : 5 : _
 a. 32; 3 b. 40; 1 c. 16; 2 d. 42; 3

10.

A trail mix contains 2 parts raisins, 1 part sunflower seeds, and 3 parts nuts. How many grams of raisins and nuts does a container of trail mix contain if there are 50 g of sunflower seeds?
 a. 100 g of raisins and 50 g of nuts c. 150 g of raisins and 100 g of nuts b. 200 g of raisins and 150 g of nuts d. 100 g of raisins and 150 g of nuts