Posted by Matt on Monday, October 29, 2007 at 4:58pm.
The minimum number will start with the 15 percent who do not have a telephone:
So 150 of 452 have a computer, but no telephone.
The next group has to be having a telephone and a computer, but not cd player.
300 do not have a cd player, so you can take these 300 and make them owners of a computer.
That leaves 2 people who have to have all three.
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