A box contains 10 balls, of which 4 are white and 6 are black. If one ball is dr
Practice Questions
Q1
A box contains 10 balls, of which 4 are white and 6 are black. If one ball is drawn, what is the probability that it is black?
3/5
2/5
1/2
1/10
Questions & Step-by-Step Solutions
A box contains 10 balls, of which 4 are white and 6 are black. If one ball is drawn, what is the probability that it is black?
Step 1: Identify the total number of balls in the box. There are 10 balls in total.
Step 2: Identify how many of those balls are black. There are 6 black balls.
Step 3: Use the formula for probability, which is the number of favorable outcomes (black balls) divided by the total number of outcomes (total balls).
Step 4: Plug in the numbers: Probability = Number of black balls (6) / Total balls (10).
Step 5: Calculate the probability: 6/10.
Step 6: Simplify the fraction: 6/10 = 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.
