Mastering Probability and Ratios in Real-Life Scenarios

A bag contains 3 red, 5 blue, and 2 green marbles. What is the probability of randomly selecting a blue marble?

• 1/2

• 3/10

• 2/5

• 1/3

Tags

CCSS.7.SP.C.7B

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

• 3:2

• 4:1

• 2:3

• 1:4

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

A spinner has 4 equal sections: red, blue, green, and yellow. What is the probability of landing on green or yellow?

• 3/4

• 1/4

• 1/3

• 1/2

At a fruit stand, 60% of the fruits are apples. If there are 50 fruits in total, how many apples are there?

• 40

• 20

• 25

• 30

Tags

CCSS.6.RP.A.3C

A survey shows that 25 out of 100 people prefer chocolate ice cream. What is the ratio of chocolate ice cream lovers to non-lovers?

• 1:3

• 3:1

• 2:3

• 1:4

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

In a deck of cards, what is the probability of drawing a heart or a diamond?

• 1/4

• 3/4

• 1/3

• 1/2

Tags

CCSS.HSS.CP.B.7

A school has 200 students, and 40% of them are in the band. How many students are in the band?

• 100

• 40

• 80

• 60

Tags

CCSS.6.RP.A.3C

If a box contains 10 toys, 4 of which are cars, what is the probability of picking a car at random?

• 3/10

• 5/6

• 1/4

• 2/5

Tags

CCSS.7.SP.C.7B

In a game, you have a 1 in 6 chance of rolling a 3. What is the probability of not rolling a 3?

• 1/6

• 5/6

• 2/6

• 4/6

A recipe requires a ratio of 2 cups of flour to 3 cups of sugar. If you use 6 cups of flour, how much sugar do you need?

• 9 cups of sugar

• 6 cups of sugar

• 3 cups of sugar

• 12 cups of sugar