In a school, Evelyn, Aiden, and James are comparing the number of books they have read. What do you call a comparison of two or more quantities with the same units?

• Ratio

• Proportion

• Direct Proportion

• Partitive proportion

What is the ratio of 8 red balls to 48 blue balls?

In a bag of marbles, there are 15 green marbles and 75 yellow marbles. What is the ratio of green marbles to yellow marbles?

What is the ratio of 12 hours to 5 days?

What is the ratio of 16 months to 4 years?

How can we say that the two ratios are proportion?

• If the given indirect proportion are equal

• if the given ratios are equal

• if the given proportion is equal

• If the given direction proportion is equal

What is the condition for two ratios to be in proportion?

• If the sum of the means and extremes are equal

• If the difference of the means and extremes are equal

• If the products of the means and extremes are equal

• If the quotient of the means and extremes are equal

 

Which pair of ratios forms a proportion?

• 4:6 and 8:12

• 8:2 and 10:4

• 2:9 and 3:13

• 7:10 and 9:15

Which pair of ratios do NOT form a proportion?

• 3:7 and 9:21

• 2:7 and 6:15

• 4:11 and 8:22

• 5:9 and 15:27

What is the value of n in

4 : 5 = 8: n?