tag:blogger.com,1999:blog-15628310.post3248530701144599150..comments2024-02-11T22:40:20.959-05:00Comments on Question of the day: How Many Societies Just Give Tractors Away?Anonymoushttp://www.blogger.com/profile/18153935609499338685noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-15628310.post-14908302286874126762010-01-04T09:19:49.369-05:002010-01-04T09:19:49.369-05:00As Jolson laid out so carefully:
A 39
B 21
C 12As Jolson laid out so carefully:<br />A 39<br />B 21<br />C 12Anonymoushttps://www.blogger.com/profile/18153935609499338685noreply@blogger.comtag:blogger.com,1999:blog-15628310.post-19312725636557109462009-12-25T00:45:46.803-05:002009-12-25T00:45:46.803-05:00After round 3
a b c
24 24 24
A and B both doubl...After round 3<br />a b c<br />24 24 24<br /><br />A and B both doubled in round 3, so slice them in half to get A and B and subtract from total 72 to get C. That means that the previous nubers must be...<br /><br />after round 2<br />a b c<br />12 12 48<br /><br />A and C both doubled in round 2, so the previous numbers were...<br /><br />after round 1<br />a b c <br />6 42 24<br /><br />Rinse and repeat with B and C<br /><br />originally<br />a b c<br />39 21 12Jolsonhttps://www.blogger.com/profile/10248500941290864096noreply@blogger.comtag:blogger.com,1999:blog-15628310.post-19037132399552809722009-12-23T22:41:58.886-05:002009-12-23T22:41:58.886-05:00Carol, you have too many tractors. In your respons...Carol, you have too many tractors. In your response, you have 40+22+12=74. There need to be 72 tractors total (24x3=72.)Mariettehttps://www.blogger.com/profile/15324256293683370310noreply@blogger.comtag:blogger.com,1999:blog-15628310.post-66129255349489881002009-12-23T16:50:33.347-05:002009-12-23T16:50:33.347-05:00I also worked backwards but got a slightly differe...I also worked backwards but got a slightly different answer:<br /><br />A: 40, B: 22, C: 12Carolhttps://www.blogger.com/profile/12821126264282303496noreply@blogger.comtag:blogger.com,1999:blog-15628310.post-84209467157537663922009-12-23T09:59:47.173-05:002009-12-23T09:59:47.173-05:00A had 39 tractors, B had 21, C had 12.
This is ea...A had 39 tractors, B had 21, C had 12.<br /><br />This is easiest to figure out if you start the math from the end result and work backwards.Mariettehttps://www.blogger.com/profile/15324256293683370310noreply@blogger.com