https://radioastron.groups.et.byu.net/dokuwiki/ 2026-05-21T12:41:22-0600 https://radioastron.groups.et.byu.net/dokuwiki/ https://radioastron.groups.et.byu.net/dokuwiki/lib/tpl/byu_2017_theme/images/favicon.ico text/html 2014-04-30T16:24:53-0600 Anonymous (anonymous@undisclosed.example.com) https://radioastron.groups.et.byu.net/dokuwiki/doku.php?id=wiki:donuts:springsummer2014:bookworm&rev=1398896693&do=diff Answer 4 mm. If the books are on the shelf with the spine out, then the front cover of Vol. 1 is against the back cover of Vol. 2 so the worm only eats through 2 covers and no pages. text/html 2014-05-29T11:56:39-0600 Anonymous (anonymous@undisclosed.example.com) https://radioastron.groups.et.byu.net/dokuwiki/doku.php?id=wiki:donuts:springsummer2014:busses&rev=1401386199&do=diff Answer It will take 42 minutes to fix all the buses. Bus Repair Time Total Time Worker A 30 12 42 Worker B 23 18 41 Worker C 14 17 8 39 text/html 2014-06-05T12:36:01-0600 Anonymous (anonymous@undisclosed.example.com) https://radioastron.groups.et.byu.net/dokuwiki/doku.php?id=wiki:donuts:springsummer2014:grass&rev=1401993361&do=diff Answer 29 days. By starting with two, it is as if he had started with one and let it grow for one day. The second one only buys you a single day extra. text/html 2014-05-23T13:52:44-0600 Anonymous (anonymous@undisclosed.example.com) https://radioastron.groups.et.byu.net/dokuwiki/doku.php?id=wiki:donuts:springsummer2014:inheritance&rev=1400874764&do=diff Answer Sandy has $384615 and Sue has $538461 Let X and Y be Sandy's and Sue's money. Let Z be the number of dollars Sandy's statement. X+Z = Y-Z and 2(X-Z) = Y+Z X = 5Z Y = 7Z Let A be the first digit in Sue's wealth, B be the remaining digits, and n be the number of digits text/html 2014-05-29T11:47:39-0600 Anonymous (anonymous@undisclosed.example.com) https://radioastron.groups.et.byu.net/dokuwiki/doku.php?id=wiki:donuts:springsummer2014:matchstick&rev=1401385659&do=diff Answer There are a few ways to do it with only 1 move: XI + I = X -> IX + I = X XI + I = X -> X + I = XI However, the equation can be fixed without moving any sticks! If you simply walk around the other side of the table and look at the equation backwards you can see the reverse equation is already valid: text/html 2014-06-17T16:06:30-0600 Anonymous (anonymous@undisclosed.example.com) https://radioastron.groups.et.byu.net/dokuwiki/doku.php?id=wiki:donuts:springsummer2014:palindrome&rev=1403042790&do=diff Answer 2 minutes. 9:59 - 10:01 text/html 2014-06-05T12:27:34-0600 Anonymous (anonymous@undisclosed.example.com) https://radioastron.groups.et.byu.net/dokuwiki/doku.php?id=wiki:donuts:springsummer2014:papersandnumbers&rev=1401992854&do=diff Answer Here is a strategy that guarantees a 50/50 chance of winning: Flip over any card, and note the number. Reject that card. Flip over another card. If this second number is smaller than the first, it cannot be the largest so you declare the third to be the largest. If this second number is larger than the first, you declare it (the second number) to be the largest.