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There are 15 bulbs in a room. Each one o...

There are 15 bulbs in a room. Each one of them can be operated independently . The number of ways in which the room can be lighted is

A

`8^(5)-1`

B

`(32)^(2)-1`

C

`(32)^(3)-1`

D

`8^(4)-1`

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The correct Answer is:
A, C
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