 |
| ||
| |||
|
| Math Central | Quandaries & Queries |
|
Last monday, the county jail had 200 prisoners. Of these, 130 were accused of felonies, and 121 were accused of misdemeanors. How many prisoners were accused of both a felony and a misdemeanor? |
Hi Ryan.
You have to assume that every prisoner is accused of either a felony or a misdemeanor or both (otherwise, why is he or she imprisoned?)
So start counting:
The first 130 are accused of felonies, so the next 70 must be accused of misdemeanors. That leaves 121 - 70 = 51 misdemeanor suspects unaccounted for. So these must also be felony suspects.
Stephen La Rocque. >
| ||
| ||
| ||
 |
 |
|
Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.