Answer: 32
Step-by-step explanation:
Write out all numbers between 0 and 99,999 that *only* contain the number zero and/or number 1.
1. 0
2. 1
3. 10
4. 11
5. 100
And so on, until you get to...
32. 11,111
Answer:
Step-by-step explanation:
Lets write all the possible numbers.
One digit: 0,1
Two digits: 10, 11
Three digits: 100, 101, 110,111
Four digits: 1000,1001, 1010, 1011, 1100, 1101, 1110, 1111
Five digits: 10000,10001,10010,10011,10100, 10101, 10110,10111, 11000, 11001, 11010, 11011, 11100, 11101, 11110,11111.
The other numbers of the list must be crossed.
