Understanding Ratios

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Show your work for each problem.

1.
A bag has 3 red balls and 5 blue balls. What is the ratio of red to blue balls?
1. a)
2. b)
3. c)
4. d)
2.
Which ratio is equivalent to ?
1. a)
2. b)
3. c)
4. d)
3.
Simplify the ratio to its lowest terms. Write your answer as a:b (example: 2:3)
4.
In a garden, there are 8 roses and 12 tulips. What is the simplified ratio of roses to tulips? (Write as a:b)
5.
The ratio of boys to girls in a class is . If there are 12 boys, how many girls are there?
1. a)16
2. b)9
3. c)15
4. d)12
6.
A recipe uses flour and sugar in a ratio of . If you use 20 cups of flour, how many cups of sugar do you need?
7.
In a parking lot, the ratio of cars to motorcycles is . If there are 21 cars, how many motorcycles are there?
8.
A fruit salad has apples, bananas, and oranges in the ratio . If there are 30 pieces of fruit total, how many of each fruit are there?
9.
Write the ratio 15 to 25 in its simplest form.
10.
The ratio of wins to losses for a team is . They played 24 games total (no ties). How many games did they win?
11.
Which ratio represents more blue paint per can: (blue:white) or (blue:white)?
1. a)
2. b)
3. c)They are equal
4. d)Cannot determine
12.
A class has boys and girls in the ratio . If 3 more boys join, the ratio becomes . How many girls are in the class?
13.
Divide 56 euros between Anna and Ben in the ratio . How much does each person get?
14.
The ratio of cats to dogs at a shelter is . If there are 45 animals total, how many more dogs than cats are there?
15.
What type of ratio is this: "12 students out of 30 total"?
1. a)Whole-to-part
2. b)Equivalent
3. c)Part-to-part
4. d)Part-to-whole