 |
| ||
| |||
|
| Math Central | Quandaries & Queries |
|
Question from john, a parent: i have a machine at home that has a four digit passcode and the numbers range from 1 to 4 how can i get all the ways those numbers can be used |
John,
Since there are only 4 digits to choose from and 4 places to put them there are 4 × 4 × 4 × 4 = 256 possibilities. You can list them, or just scroll through them on the passcode panel in an orderly fashion.
1111
1112
1113
1114
1121
1122
1123
1124
1131
.
.
.
1211
1212
.
.
.
4444
It's like watching the numbers scroll by on an old style automobile odometer.
I hope this helps,
Harley
| ||
| ||
| ||
 |
 |
|
Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.