Pre-Algebra Ratios and Proportions Exam

Form ratios and a proportion out of the picture above.

• 3 : 6, 6 : 3 and 3 : 6 = 6 : 3

• 6 : 3, 2 : 1 and 6 : 3 = 2 : 1

• 3 : 6, 1 : 2 and 3 : 6 = 6 : 3

• 1 : 2, 3 : 6 and 3 : 2 = 1 : 6

Form ratios and a proportion out of the picture above.

• 10 : 150, 1 : 15 and 10 : 150 = 1: 15

• 1 : 150, 1 : 15 and 1 : 150 = 1 : 2

• 10 : 150, 10 : 2 and 10 : 150 = 10 : 2

• 1 : 2, 10 : 150 and 1 : 2 = 10: 150

Are 2 : 3 and 10 : 15 equivalent?

• Yes

• NO

Are 8 : 12 and 4 : 5 equivalent?

• Yes

• No

Are 21 : 6 and 7 : 2 equivalent?

• Yes

• No

Are 6 : 9 and 24 : 32 equivalent?

• Yes

• No

Two out of three booths sell rag dolls. If there are 27 booths, how many of these sell rag dolls?

• 2

• 3

• 6

• 18

For every eight children, 10 pieces of fried chicken are ordered. How many pieces of fried chicken will be ordered for 32 children?

• 40

• 80

• 400

• 800

An urn has four different colored balls. The ratio of blue balls to red balls is 3 : 7 and the ratio of green balls to yellow balls is 9 : 21. Are the ratios of blue balls to red balls and green balls to yellow balls equivalent?

• Yes, because the product of the means and extremes are both equal to 63.

• No, because the products are different.

Is this proportion equal?
1/3     4/12

• =

• ≠