In a room there are 12 bulbs of the same wattage, each having sep | Filo
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Class 11

Math

JEE Main Questions

Permutations and Combinations

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In a room there are 12 bulbs of the same wattage, each having separate switch. The number of ways to light the room with different amounts of illumination is (a) (b) (c) (d) none of these

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