Question:
A jar contains 4 red, 5 blue, and 6 green marbles. If one marble is picked at random, what is the probability it is blue?
A jar contains 4 red, 5 blue, and 6 green marbles. If one marble is picked at random, what is the probability it is blue?
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To calculate probability, divide the number of favorable outcomes (blue marbles) by the total number of possible outcomes (total marbles).
Updated On: Oct 6, 2025
- \( \frac{1}{3} \)
- \( \frac{5}{15} \)
- \( \frac{4}{15} \)
- \( \frac{2}{5} \)
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The Correct Option is A
Solution and Explanation
Step 1: The total number of marbles is:
\[
4 + 5 + 6 = 15.
\]
Step 2: The probability of picking a blue marble is:
\[
\frac{5}{15} = \frac{1}{3}.
\]
Thus, the probability of picking a blue marble is \( \frac{1}{3} \).
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