Question:
A bag contains 5 Red, 4 White, and 6 Black balls. If one ball is drawn completely at random, then the probability that it is either a Red or a White ball is:
A bag contains 5 Red, 4 White, and 6 Black balls. If one ball is drawn completely at random, then the probability that it is either a Red or a White ball is:
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You can also use the complement rule:
$P(\text{Red or White})=1-P(\text{Black})$.
Updated On: Jun 12, 2026
- $\frac{4}{45}$
- $\frac{7}{45}$
- $\frac{3}{4}$
- $\frac{3}{5}$
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Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Find the total number of balls. $$ 5+4+6=15 $$
Step 2: Find favourable outcomes. Red or White balls: $$ 5+4=9 $$
Step 3: Calculate probability. $$ P(\text{Red or White}) = \frac{9}{15} = \frac{3}{5} $$ \[ \boxed{\frac{3}{5}} \]
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