How many five-digit numbers can be written using the numbers 1 and 0?
| August 5, 2021 | education
There are five positions in the number we need.
The first is 1 – one option, because numbers don’t start at zero. The second may have two options: 1 or 0. The third will also have two options. And so on until the fifth position.
To calculate all the possible numbers, we multiply all the options in each position.
1 * 2 * 2 * 2 * 2 = 16 numbers.
Answer: 16.
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