Probability and Ratios: Real-Life Word Problems for 7th Grade

A bag contains 5 red marbles and 3 blue marbles. What is the probability of randomly selecting a red marble?

• 1/2

• 3/8

• 2/5

• 5/8

In a class of 30 students, 12 are girls. What is the ratio of boys to girls in the class?

• 4:3

• 2:1

• 3:2

• 1:1

A recipe requires 2 cups of flour for every 3 cups of sugar. If you want to use 6 cups of sugar, how many cups of flour do you need?

• 3 cups of flour

• 6 cups of flour

• 4 cups of flour

• 2 cups of flour

A survey shows that 70% of students prefer online classes. If there are 200 students surveyed, how many prefer online classes?

• 180

• 140

• 120

• 160

A store sells 4 apples for every 3 oranges. If there are 24 apples, how many oranges are there?

• 12

• 30

• 24

• 18

In a game, the probability of winning is 1 out of 4. If you play the game 12 times, how many times can you expect to win?

• 2

• 4

• 5

• 3

A car travels 150 miles on 5 gallons of gas. What is the ratio of miles traveled to gallons used?

• 40:1

• 30:1

• 35:1

• 25:1

In a school, 60% of the students are involved in sports. If there are 500 students, how many are involved in sports?

• 300

• 400

• 150

• 250

A recipe calls for a ratio of 1:2 for salt to sugar. If you use 3 teaspoons of salt, how much sugar do you need?

• 8 teaspoons of sugar

• 2 teaspoons of sugar

• 6 teaspoons of sugar

• 4 teaspoons of sugar

In a deck of cards, what is the probability of drawing a heart? (There are 52 cards in total.)

• 1/3

• 1/2

• 1/4

• 1/5