9750 /www/nrich/html/content/id/9750/ 1 2013-01-02T17:06:09 <?xml version="1.0" encoding="UTF-8"?> <mdoxml version="1.0">On my clock&#39;s display, the time has just changed to 02:31. How many minutes will it be until all the digits 0, 1, 2, 3 next appear together again?</mdoxml> <?xml version="1.0" encoding="UTF-8"?> <mdoxml version="1.0">The next such display will be 03:12, that is in 41 minutes&#39; time.</mdoxml> 2 3 0 0 1 0 0 Weekly Problem 4 - 2013