Ratio_Y8

Select two ratios that are equivalent to 8:20

• 4:15

• 16:25

• 4:10

• 2:5

What is the ratio of green marbles to red marbles?

• 3/2
• 3/1
• 3/3
• 2/3

The ratio of green counters to blue counters is 4 : 5

What fraction of the counters are blue?

• ⁵/₄

• ⁴/₅

• ⁴/₉

• ⁵/₉

The ratio of clubs to hearts in a hand of playing cards is 6 : 1

What fraction of the cards are hearts?

• ¹/₆

• ⁶/₁

• ¹/₇

• ⁶/₇

There is a height-to-shadow ratio. It is 40 : 30. Look to the image and try to find the height of the tallest person.

• 80 cm

• 78 cm

• 84 cm

• 82 cm

What is a Ratio?

• Is a comparison of two quantities 
• To multiply two fractions 
• A number over another number
• Two decimals that can be multiplied

Determine whether the given sequence is geometric sequence.

3, 6, 9, 12, 15, ...

• It is a geometric sequence.

• It is not a geometric sequence.

A class has 30 students. 18 are boys. What is the ratio of boys to girls? (you must simplify)

• 12:18

• 3:2

• 30:18

• 18:7

• 8 : 9

A machine is able to copy 40 pages in 8 seconds. What is the rate of pages made per second?

• 48 pages per second

• 5 pages per second

• 16 pages per second

• 4 pages per second