tag:blogger.com,1999:blog-2893315201359920156.post8338888756895959278..comments2023-10-28T20:35:12.856+05:30Comments on Best Brain Teasers: Logic Puzzle Problemlaveshhttp://www.blogger.com/profile/03731980294342074301noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-2893315201359920156.post-11095782703039461532013-04-16T07:12:04.754+05:302013-04-16T07:12:04.754+05:30If we leave the spare alone and just rotate the fo...If we leave the spare alone and just rotate the four tires, they should average 25,000 miles each. Since we are rotating 5 tires instead of four, we should be able to get 31,250 miles from our tires.<br /><br />25,000 * 5/4 = 31,250Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2893315201359920156.post-9486016469237237962013-04-05T14:10:33.754+05:302013-04-05T14:10:33.754+05:3029000 km29000 kmAnithanoreply@blogger.comtag:blogger.com,1999:blog-2893315201359920156.post-65857446773171229632013-04-01T20:53:22.982+05:302013-04-01T20:53:22.982+05:3021,000 kms answer cannot be right as rate of weari...21,000 kms answer cannot be right as rate of wearing of tyres are different for front and rear wheels.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2893315201359920156.post-33998209687427779802013-04-01T17:35:40.525+05:302013-04-01T17:35:40.525+05:3021,000kms21,000kmsAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-2893315201359920156.post-68275807092231561992013-04-01T16:41:48.134+05:302013-04-01T16:41:48.134+05:30Logic:
21000Logic:<br />21000Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2893315201359920156.post-11918932067839475882013-04-01T16:29:36.309+05:302013-04-01T16:29:36.309+05:30Maximum distance : 30,450 kilometers.
For each 5 ...Maximum distance : 30,450 kilometers.<br /><br />For each 5 kilometers driven using this rotation, each tire will lose (2/29000)+(2/21000) of its tread.So, suppose we drive 5*N kilometers like this. Then, each tire will lose 2*N*((1/29000)+(1/21000)) of its tread. We wish to determine N so that the latter expression gets to be 1, representing all of each tire's tread. That happens when N=6090, which is when 5*N (the total kilometers driven) is 30,450Geniushttp://gpuzzles.com/noreply@blogger.comtag:blogger.com,1999:blog-2893315201359920156.post-51169654087500568812013-04-01T12:48:48.139+05:302013-04-01T12:48:48.139+05:3021000 kilometer, as usual......21000 kilometer, as usual......Anonymoushttps://www.blogger.com/profile/07228352536984778134noreply@blogger.comtag:blogger.com,1999:blog-2893315201359920156.post-9544992614950197982013-04-01T10:56:43.546+05:302013-04-01T10:56:43.546+05:302900029000Anonymoushttps://www.blogger.com/profile/06073578960962837592noreply@blogger.com