Question: A box contains 5 red balls and 3 blue balls. What is the probability of drawing a red ball? (2021)
Options:
3/8
5/8
1/2
1/3
Correct Answer: 5/8
Exam Year: 2021
Solution:
Total balls = 5 + 3 = 8. Probability of red = 5/8.
A box contains 5 red balls and 3 blue balls. What is the probability of drawing
Practice Questions
Q1
A box contains 5 red balls and 3 blue balls. What is the probability of drawing a red ball? (2021)
3/8
5/8
1/2
1/3
Questions & Step-by-Step Solutions
A box contains 5 red balls and 3 blue balls. What is the probability of drawing a red ball? (2021)
Step 1: Count the number of red balls in the box. There are 5 red balls.
Step 2: Count the number of blue balls in the box. There are 3 blue balls.
Step 3: Add the number of red balls and blue balls together to find the total number of balls. 5 red + 3 blue = 8 total balls.
Step 4: To find the probability of drawing a red ball, divide the number of red balls by the total number of balls. This is 5 red balls divided by 8 total balls.
Step 5: Write the probability as a fraction: Probability of red = 5/8.
Probability Calculation – Understanding how to calculate the probability of an event by dividing the number of favorable outcomes by the total number of possible outcomes.
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