Week 5- Application of Ratio

What is the ratio of 3 blue marbles to 6 green marbles?

In a group of 8 red marbles and 6 purple marbles, what is the ratio of red marbles to purple marbles in the simplest form?

Find the ratio of purple marbles to the total number of marbles if there are 6 purple marbles and 14 marbles in total. Simplest form.

Simplify the ratio 1.5:4.5 by first removing the decimals.

Simplify the ratio 1.6 cm to 12 mm. (Hint: Convert one of the units first.)

Simplify the ratio 50 minutes to 1.5 hours. (Hint: Convert one of the units first.)

A recipe calls for 8 cups of flour and 12 cups of sugar. Write the ratio of flour to sugar and simplify it.

• 8:12
• 2:3
• 4:6
• 3:4

In a class, the ratio of boys to girls is 2:3. If there are 18 boys, how many girls are there, and what is the total number of students?

• 27 girls, 45 students
• 12 girls, 30 students
• 24 girls, 42 students
• 21 girls, 39 students

The ratio of boys to girls in a school is 3:4. If there are 150 boys, how many girls are there, and what is the total number of students in the school? Show all working.