suspicious android wrote:Not worth diagramming, but not valid. Imagine exactly 100 people in Glendale. The people who don't buy gas on Mondays (up to 49) could buy their gas on Tuesdays, giving us perhaps 49 residents who buy gas and groceries on the same day. The people who don't buy groceries on Tuesday, even if that's just just one person, could buy their groceries on Monday, giving us another one or more persons buying gas and groceries on the same day. So we could have 50 or more people buying gas and groceries on the same day.
i thought about this for quite a bit. this problem is not as simple as it appears to be. consider this:
1. pretend that Glendale has only 3 people who live in it, JKN. this will simplify majority/minority and visualization best.
2. the key is not who buys gas/groceries on what day and who doesn't, it's who is allowed to REPEAT the purchase during the week and who isn't. key word in the stimulus is "only".
3. after much contemplation, it became apparent to me that had the commodities of gas & groceries been available only on Monday and Tuesday respectively, the argument's conclusion would have been sound.
4. There are more days in the week than just Monday and Tuesday when such commodities are presumably still available.
let me know what you think.