It's your friend's birthday, and you want to use binary numbers for the candles on their cake. Your plan is to use green candles to mean "on" and gray candles to mean "off". What's the least number of candles you need in order to represent the age 18?
Computers and Technology · High School · Tue Nov 03 2020
Answered on
To represent the age 18 in binary, you need to find the binary representation of the decimal number 18. In binary, 18 is represented as 10010.
The least number of candles needed would be the number of bits in the binary representation, which is the count of digits. In this case, there are five bits in the binary representation of 18 (10010).
So, the least number of candles needed to represent the age 18 in binary would be 5. You would use five candles, where green represents "on" and gray represents "off" to form the binary number 10010.