Question

There are 10 bulbs in a room. Each one of them can be operated independently. Find the number of ways in which the room can be illuminated.​

Answer 1

Answer:

1023

Step-by-step explanation:

Total = 10 bulbs

on/off

number of ways = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2

                           = $2^{10}$ - ⊥

                           = 1024 - ⊥

                           = 1023