A jar contains 4 red, 5 green, and 6 blue marbles. What is the probability of randomly selecting a green marble?
Practice Questions
1 question
Q1
A jar contains 4 red, 5 green, and 6 blue marbles. What is the probability of randomly selecting a green marble?
1/3
5/15
5/15
1/5
The total number of marbles is 4 + 5 + 6 = 15. The probability of selecting a green marble is 5/15 = 1/3.
Questions & Step-by-step Solutions
1 item
Q
Q: A jar contains 4 red, 5 green, and 6 blue marbles. What is the probability of randomly selecting a green marble?
Solution: The total number of marbles is 4 + 5 + 6 = 15. The probability of selecting a green marble is 5/15 = 1/3.
Steps: 6
Step 1: Count the number of red marbles. There are 4 red marbles.
Step 2: Count the number of green marbles. There are 5 green marbles.
Step 3: Count the number of blue marbles. There are 6 blue marbles.
Step 4: Add the number of all marbles together: 4 (red) + 5 (green) + 6 (blue) = 15 total marbles.
Step 5: Identify how many of the marbles are green. There are 5 green marbles.
Step 6: To find the probability of selecting a green marble, divide the number of green marbles by the total number of marbles: 5 (green) / 15 (total) = 1/3.
