tag:blogger.com,1999:blog-6746419206932469118.post6866231442143214805..comments2023-09-23T19:03:39.693+08:00Comments on Road to PSLE: Another Math Problem SumExcel Eduservicehttp://www.blogger.com/profile/11691081348489781290noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-6746419206932469118.post-77366605104813368082011-03-19T10:44:38.030+08:002011-03-19T10:44:38.030+08:00A : B+C+D -> 1 : 4 -> Total 5u
B : A+C+D -&g...A : B+C+D -> 1 : 4 -> Total 5u<br />B : A+C+D -> 1 : 3 -> Total 4u<br />C : A+B+D -> 1 : 2 -> Total 3u<br /><br />LCM for 5, 4 and 3 is 60<br /><br />A : B+C+D -> 12 : 48 -> Total 60u<br />B : A+C+D -> 15 : 45 -> Total 60u<br />C : A+B+D -> 20 : 40 -> Total 60u<br /><br />A+B+C -> 12u+15+20u = 37u<br />D: 60u - 37u = 13u<br />1u -> 78/13 = 6<br />A: 12u -> 72<br />B: 15u -> 90<br />C: 20u -> 120Anonymousnoreply@blogger.com