Question: A box contains 4 white and 6 black balls. What is the probability of drawing a black ball? (2023)
Options:
2/5
3/5
4/5
1/5
Correct Answer: 3/5
Exam Year: 2023
Solution:
Total balls = 4 + 6 = 10. Probability of black ball = 6/10 = 3/5.
A box contains 4 white and 6 black balls. What is the probability of drawing a b
Practice Questions
Q1
A box contains 4 white and 6 black balls. What is the probability of drawing a black ball? (2023)
2/5
3/5
4/5
1/5
Questions & Step-by-Step Solutions
A box contains 4 white and 6 black balls. What is the probability of drawing a black ball? (2023)
Step 1: Count the number of white balls in the box. There are 4 white balls.
Step 2: Count the number of black balls in the box. There are 6 black balls.
Step 3: Add the number of white balls and black balls together to find the total number of balls. 4 + 6 = 10.
Step 4: Identify how many of the total balls are black. There are 6 black balls.
Step 5: To find the probability of drawing a black ball, divide the number of black balls by the total number of balls. This is 6 (black balls) divided by 10 (total balls).
Step 6: Simplify the fraction 6/10. Both numbers can be divided by 2, which gives us 3/5.
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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