Question

How many different combinations of “on” and “off” are possible with 8 “lightbulbs”?

Answer 1

How many different combinations of “on” and “off” are possible with 8 “light bulbs”?

Answer: The total number of combinations of "on" and "off" that are possible with 8 "light bulbs" is $2^{8}=256$

Therefore, 256 different combinations of “on” and “off” are possible with 8 “light bulbs”