Comparing Ratios by Division

There are 42 people walking in 2 rows. How many people are walking in 1 row?

• 84 people in 1 row
• 42 people in 1 row
• 24 people in 1 row
• 21 people in 1 row

In a class, the ratio of boys to girls is 6:5. If there are 18 boys, how many girls are there?

• 11
• 24
• 12
• 15

Keely went for a long swim. If she swam 12 miles in 3 hours, how long would she swim in 6 hours?

• 20 miles
• 4 miles
• 72 miles
• 24 miles

In the computer lab, there are 1 PC for every 5 Mac computers. If the computer lab has a total of 24 computers, how many are Mac?

• 20
• 6
• 5
• 10

Choose the SIMPLEST ratio that compares dogs to cats when you have 12 dogs and 6 cats

• 12:6

• 6:12

• 2:1

• 1:2

3.  If the ratio of white pens to green pens is 2 to 8 and there are a total of 30 pens, how many pens are WHITE?

• 6
• 8
• 10
• 12

There are a total of 18 chairs. If the ratio of red chairs to brown chairs is 2 to 4, how many of them are red?

• 4

• 6

• 12

• 18

The sum of two numbers is 200.
The two numbers are in a ratio of 4: 6.
What are the two numbers?

• 40, 80
• 80, 100
• 80, 120
• 40, 120