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Subject: ¦U¦ì®v¥S,·Q¦V§A­Ì½Ð±Ð¨â±ø¼Æ¾ÇÃD Author: ¤¤¥|¤H [ Next Thread | Previous Thread | Next Message | Previous Message ] Date Posted: 12:59:33 07/18/03 Fri Q1 Tom and Peter working together can load a truck in 2 hours.If they work esparately,Tom requires 3 hours less than Peter to load a truck.Find the time Peter requires to load a truck alone. Q2 Two taps A and B are used to fill up a tank with water.It takes 25 minutes longer when tap A is used alone to fill the tank than tap B.If each of tap A and tape B is turned on successively for twenty minutes and then they are turned on together for 10 minutes,the tank is full.Find the time needed for tap A alone and tap B alone to fill up the tank. thx [ Next Thread | Previous Thread | Next Message | Previous Message ]

Replies:

[> Subject: Re: ¦U¦ì®v¥S,·Q¦V§A­Ì½Ð±Ð¨â±ø¼Æ¾ÇÃD Author: 4d boy [ Edit | View ] Date Posted: 21:36:41 07/18/03 Fri >Q1 >Tom and Peter working together can load a truck in 2 >hours.If they work esparately,Tom requires 3 hours >less than Peter to load a truck.Find the time Peter >requires to load a truck alone. let x be the time peter requires, so that x-3 be the time tom requires 1/x-3 + 1/x = 1/2 . . . x=6 or x=1 (rejected) [ Post a Reply to This Message ]

[> Subject: Re: ¦U¦ì®v¥S,·Q¦V§A­Ì½Ð±Ð¨â±ø¼Æ¾ÇÃD Author: ¦¨¦N«ä¦½ [ Edit | View ] Date Posted: 22:41:55 07/18/03 Fri ¨â±øÃD¥Ø¦PÄݤ@Ãþ §A¥i¥H§â¤@¥ó¤uµ{(§Yload a truck ©Î fill up the tank)¬Ý°µ1(­Óunit). ©ÎªÌ§A¥i¥H·Q¹³1 unit¬O«üTom and Peter©Îtaps A and B ­n¨«ªº¸ôµ{.(§Y¨ä¶ZÂ÷) ³oùتº¡u³t²v¡v(§Y§¹¦¨¤@¥ó¤u§@ªº³t²v)«K¬O¶ZÂ÷°£¥H®É.¶¡,1/x,where x is the time required for the job to finish. ¨ä­Ó§O³t²v¬Û¥[«K¬O¨ä¦X§@ªº³t²v¤F [ Post a Reply to This Message ]

[> Subject: Re: ¦U¦ì®v¥S,·Q¦V§A­Ì½Ð±Ð¨â±ø¼Æ¾ÇÃD Author: man [ Edit | View ] Date Posted: 23:26:47 07/18/03 Fri ³£´No¾¤¤Éf.5oùbor,©Od o¥Ì²Lga¼Æ³£°Ý....................... [ Post a Reply to This Message ]

[> [> Subject: Re: ¦U¦ì®v¥S,·Q¦V§A­Ì½Ð±Ð¨â±ø¼Æ¾ÇÃD Author: ¤¤¤»¤H [ Edit | View ] Date Posted: 01:14:06 07/19/03 Sat ®v§Ì §A­ø¾p²z©O­Óman Á`¤§¦³­øÃÑ´N°Ý ­ø¦nÅå¤H¸Ü [ Post a Reply to This Message ]

[> [> Subject: Re: ¦U¦ì®v¥S,·Q¦V§A­Ì½Ð±Ð¨â±ø¼Æ¾ÇÃD Author: f5e student [ Edit | View ] Date Posted: 03:43:46 07/21/03 Mon °Ý±o¦n°Ú ­ø©ú´N°Ý ­ø¦n¬°­±¤l¦Ó­ø°Ý°Ú ­ø¾p²zªG­Óman ¥[ªoŪ®Ñ [ Post a Reply to This Message ]

[> [> Subject: Re: ¦U¦ì®v¥S,·Q¦V§A­Ì½Ð±Ð¨â±ø¼Æ¾ÇÃD Author: Fai [ Edit | View ] Date Posted: 12:59:36 07/23/03 Wed >³£´No¾¤¤Éf.5oùbor,©Od >o¥Ì²Lga¼Æ³£°Ý....................... man , §ÚÚ»§A­ø°_§r¡I¡I ¤£®¢¤U°Ý§r¡I¡I¡I¡I [ Post a Reply to This Message ]

[> [> [> Subject: Re: ¦U¦ì®v¥S,·Q¦V§A­Ì½Ð±Ð¨â±ø¼Æ¾ÇÃD Author: MAN [ Edit | View ] Date Posted: 12:30:29 07/26/03 Sat >>³£´No¾¤¤Éf.5oùbor,©Od >>o¥Ì²Lga¼Æ³£°Ý....................... >man , §ÚÚ»§A­ø°_§r¡I¡I >¤£®¢¤U°Ý§r¡I¡I¡I¡I §A¦PÃä­ÓÁ¿³¥?! [ Post a Reply to This Message ]

[> Subject: Re: ¦U¦ì®v¥S,·Q¦V§A­Ì½Ð±Ð¨â±ø¼Æ¾ÇÃD Author: ¤ä«ù [ Edit | View ] Date Posted: 12:37:40 07/19/03 Sat >Q1 >Tom and Peter working together can load a truck in 2 >hours.If they work esparately,Tom requires 3 hours >less than Peter to load a truck.Find the time Peter >requires to load a truck alone. >Q2 >Two taps A and B are used to fill up a tank with >water.It takes 25 minutes longer when tap A is used >alone to fill the tank than tap B.If each of tap A and >tape B is turned on successively for twenty minutes >and then they are turned on together for 10 >minutes,the tank is full.Find the time needed for tap >A alone and tap B alone to fill up the tank. > > >thx «Y§r, ¬°¾Ç¤§¹D¦b©ó¤£®¢¤U°Ý§r [ Post a Reply to This Message ]

[> Subject: Re: ¦U¦ì®v¥S,·Q¦V§A­Ì½Ð±Ð¨â±ø¼Æ¾ÇÃD Author: ¤¤¤C¤A¯Z¤G¤Q¤­¸¹ [ Edit | View ] Date Posted: 06:47:50 07/24/03 Thu ¥[ªo¡A¦U¦ì®v§Ì¡A¦³¼Æ­øÃÑ¡£©ÎªÌ«Y¨ä¥L¬ì¡¤¤@©w­n°Ý¨ì©ú¬[¡A¥i¥H°Ý®v¥S¡A¥i¥H°Ý¦Ñ®v¡AËÝ¥ý·|¦³¶i¨B¬[ ¥[ªo¥[ªo¡A©ú¦~·|¦Ò­n¦Ò¦n§r^^ [ Post a Reply to This Message ]