Ratios
Mrs. Keller and Mrs. Stafford took polls of their second-grade classes to find out their students' favorite colors. In Mrs. Keller's class, 10 students said their favorite color was blue and 5 said their favorite color was red. In Mrs. Stafford's class, 11 voted for blue and 6 for red. Whose class had a lower ratio of students who preferred blue to students who preferred red?
A) Mrs. Keller's B) Mrs. Stafford's or C) neither; the ratios are equivalent
What is B
A recipe uses 2 cups of flour for every 3 cups of sugar. How many cups of flour are needed for 6 cups of sugar
4 cups
There are 8 boys and 12 girls in a classroom. What is the ratio of boys to girls?
8:12
Vera's punch recipe calls for 2 liters of lemon-lime soda and 5 liters of pineapple juice. David's punch recipe requires 3 liters of lemon-lime soda and 7 liters of pineapple juice. Which recipe has a higher ratio of lemon-lime soda to pineapple juice?
A) Vera's recipe B) David's recipe or C) neither; the ratios are equivalent
What is B
A basketball player makes 4 shots for every 5 attempts. If the player takes 20 shots, how many would they expect to make at the same rate?
16 shots
A pizza has 6 slices of pepperoni and 4 slices of cheese. What is the ratio of pepperoni slices to total slices?
6:10
There are 12 comic books and 5 novels in the shelf. Ratio of comic books to total books in the shelf is _____________.
What is 12:17
Mandy and Abby are photographers who specialize in portraits. Last year, Mandy photographed 7 individuals and 14 families. Abby photographed 9 individuals and 18 families. Who photographed a lower ratio of individuals to families?
A) Mandy B) Abby or C) neither; the ratios are equivalent
What is C
A classroom has 3 computers for every 6 students. If there are 24 students, how many computers would be needed to keep the same ratio?
12 computers
A soccer team has 15 players. If 9 players are wearing blue jerseys and the rest are wearing white, what is the ratio of blue jerseys to white jerseys?
9:6
There is 200 dogs and 500 cats at the shelter. The simplified ratio of dogs to the total of animals is _______
What is 2:7
DOUBLE JEOPARDY: WORTH 800 POINTS
A school is making a large batch of fruit punch for a school dance.
The ratio of orange juice to cranberry juice is 2:3. They currently have 20 cups of orange juice and 24 cups of cranberry juice.
How many additional cups of cranberry juice must they buy to use all of their orange juice while maintaining the correct ratio?
6 additional cups
A lemonade stand uses 4 lemons to make 2 pitchers of lemonade. How many lemons are needed to make 10 pitchers?
20 lemons
At a birthday party, there are 18 balloons. The ratio of red balloons to blue balloons is 2:1. How many balloons are red and how many are blue?
12 red, 6 blue
There are 1,278 Butterfly's and 7,245 flies at the natural resource center. The ratio of flies to the total of insects is ________
What is 7,245:8,523
Last year, Jim used 5 bottles of shampoo and 4 bottles of conditioner. His sister, Maria, used 9 bottles of shampoo and 8 bottles of conditioner. Who used a higher ratio of shampoo to conditioner last year?
A) Jim B) Maria or C) neither; the ratios are equivalent
What is A
A paint mixture uses 3 cups of blue paint for every 5 cups of white paint. If you have 24 cups of blue paint, how many TOTAL cups of paint will you have when the mixture is complete?
64 total cups
A school has 120 sixth-grade students. The ratio of students who ride the bus to students who get picked up is 3:2. How many students use each form of transportation?
72 students use the bus
48 students get picked up