tag:blogger.com,1999:blog-2217022227008948602.post6197451342763408900..comments2018-02-23T20:05:21.115-08:00Comments on The Puzzle Page: The Lawn BoysErik Oosterwalhttps://plus.google.com/115486494805503670399noreply@blogger.comBlogger9125tag:blogger.com,1999:blog-2217022227008948602.post-82559310332957665972009-09-06T18:36:14.006-07:002009-09-06T18:36:14.006-07:00there is no answer for this problemthere is no answer for this problemzvl_dnlvhttps://www.blogger.com/profile/10028134574469160689noreply@blogger.comtag:blogger.com,1999:blog-2217022227008948602.post-64159956809499402362009-06-28T16:44:48.089-07:002009-06-28T16:44:48.089-07:00i would like 2 see half a boy mow a lawni would like 2 see half a boy mow a lawnJPhttps://www.blogger.com/profile/06955751144084794406noreply@blogger.comtag:blogger.com,1999:blog-2217022227008948602.post-70762176324046989892009-05-02T07:07:00.000-07:002009-05-02T07:07:00.000-07:00How can 2.5 boys mow the lawn?
You have to round ...How can 2.5 boys mow the lawn?<br /><br />You have to round up. Half a boy can't do anything.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2217022227008948602.post-64602906182031050862009-03-31T13:32:00.000-07:002009-03-31T13:32:00.000-07:00I think you are missing the fact that it says a We...I think you are missing the fact that it says a Week and a Half.<BR/>That is 1.5 weeks which is 10.5 days (not 7.5).Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2217022227008948602.post-58422702346410361362008-12-16T14:20:00.000-08:002008-12-16T14:20:00.000-08:00I think the puzzle would be better with a slight c...I think the puzzle would be better with a slight change of the original question:<BR/><BR/>Here my proposal:<BR/><BR/>If a boy and a half can mow a lawn and a half in a day and a half, how many boys are needed to mow a dozen and a half in 7 days and a half?<BR/><BR/>The answer is "2 and a half".<BR/><BR/>reasoning:<BR/>1 boy can mow 1 lawn in 1.5 days<BR/>1 boy can mow 5 lawns in 7.5 days<BR/>2.5 boys can mow 12.5 lawns in 7.5 daysericanprohttps://www.blogger.com/profile/10051735207418539362noreply@blogger.comtag:blogger.com,1999:blog-2217022227008948602.post-25311956534425973082008-06-20T06:16:00.000-07:002008-06-20T06:16:00.000-07:00One of the anonymous posters above was correct tha...One of the anonymous posters above was correct that the result is not an integer value.<BR/><BR/>Based on the introduction of the problem a single boy can mow a single lawn in 1.5 days, or 2/3 lawn per day (1 1/2 boys complete 1 1/2 lawns in 1 1/2 days--if you take away the 1/2 boy then during the same amount of time (1 1/2 day) one half of one lawn will not be mowed, meaning that a single boy needs 1 1/2 days to mow one lawn.)<BR/><BR/>"A dozen and a half" is the same as one and one half dozen, or 18, and a week and a half is 10.5 days. The total number of lawns that need to be mowed each day is 18/10.5 or 12/7--this is 'lawns per day'. Divide the total number of lawns per day by the number of lawns a single boy can mow in a day to find the number of boys needed to complete the task: (12/7)/(2/3) = (12/7)•(3/2) = 36/14. We must then subtract one half boy from this result to come up with the final answer because the question asked for "How many and a half?": 36/14 - 7/14 = 29/14, or just slightly more than 2 boys.<BR/><BR/>One of the 2 boys could bring along a dog with an upset stomach to eat enough grass to make up for that 1/14 of a boy. ;-)Erikhttps://www.blogger.com/profile/14514993727423832898noreply@blogger.comtag:blogger.com,1999:blog-2217022227008948602.post-71603024051768994282008-05-28T16:23:00.000-07:002008-05-28T16:23:00.000-07:00If 1 boy can mow 2/3 of a lawn in 1 day.Then 1 boy...If 1 boy can mow 2/3 of a lawn in 1 day.<BR/>Then 1 boy can mow 5 lawns in 7.5 days.<BR/>And 2.5 boys can mow 12.5 lawns in 7.5 days.<BR/><BR/>So the answer is two. (How many and a half boys)Drekabnoreply@blogger.comtag:blogger.com,1999:blog-2217022227008948602.post-10096960654196772522008-05-06T19:14:00.000-07:002008-05-06T19:14:00.000-07:00it doesn't work out evenly...i've tried it various...it doesn't work out evenly...i've tried it various ways getting the same answer...it's asking how many boys does it take to mow a dozen and a half (18) lawns in a week in a half (10.5 days).<BR/><BR/>1 boy can mow 1 lawn in 1.5 days<BR/>2 boys can mow 2 lawns in 1.5 days<BR/>2.5 boys can mow 2.5 lawns in 1.5 days<BR/>when figuring out how many boys can mow a certain number of lawns in a certain amount of day (i've done pictures and charts) i've realized that 10.5 days divided by 1.5 (the original given amount of days) i get 7...so 7B = L we know 18 = the number of lawns so pluggin it in 7B = 18...B=18/7= 2.57boys it doesn't work out perfectlyAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-2217022227008948602.post-37847417192452601372008-02-13T08:44:00.000-08:002008-02-13T08:44:00.000-08:00oneoneAnonymousnoreply@blogger.com