A box contains 10 balls, 4 of which are red and 6 are blue. If one ball is drawn

Practice Questions

Q1
A box contains 10 balls, 4 of which are red and 6 are blue. If one ball is drawn, what is the probability that it is blue?
  1. 2/5
  2. 3/5
  3. 4/10
  4. 6/10

Questions & Step-by-Step Solutions

A box contains 10 balls, 4 of which are red and 6 are blue. If one ball is drawn, what is the probability that it is blue?
Correct Answer: 3/5
  • Step 1: Count the total number of balls in the box. There are 10 balls in total.
  • Step 2: Count how many of those balls are blue. There are 6 blue balls.
  • Step 3: To find the probability of drawing a blue ball, use the formula: Probability = (Number of blue balls) / (Total number of balls).
  • Step 4: Substitute the numbers into the formula: Probability = 6 / 10.
  • Step 5: Simplify the fraction 6/10 to get 3/5.
  • Probability – The likelihood of an event occurring, calculated as the number of favorable outcomes divided by the total number of possible outcomes.
  • Basic Counting – Understanding how to count the total number of items and the specific items of interest.
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