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The number of ways of selecting 3 balls from a bag containing 5 red and 4 blue balls such that at least one is red is:

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"At least one" is almost always easiest to calculate using the complement method.

Updated On: Apr 8, 2026

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The Correct Option is A

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The number of ways of selecting 3 balls from a bag containing 5 red and 4 blue balls such that at least one is red is:

Show Hint

The Correct Option is A

Solution and Explanation

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