#ed_op#DIV#ed_cl# #ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl#嗯!這是題意講的,因為題意指明三堆總數變「相同」了!#ed_op#/DIV#ed_cl#車神 寫到:由題意可知2X-2Y=2Y-Z=2Z-X+Y#ed_op#BR#ed_cl#又X+Y+Z=936#ed_op#BR#ed_cl##ed_op#BR#ed_cl#我到這裡有點不明白~2x-2y=2y-z=2z-x+y有什麼關係@_@
#ed_op#DIV#ed_cl# #ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl#嗯!這是題意講的,因為題意指明三堆總數變「相同」了!#ed_op#/DIV#ed_cl#車神 寫到:由題意可知2X-2Y=2Y-Z=2Z-X+Y#ed_op#BR#ed_cl#又X+Y+Z=936#ed_op#BR#ed_cl##ed_op#BR#ed_cl#我到這裡有點不明白~2x-2y=2y-z=2z-x+y有什麼關係@_@
#ed_op#DIV#ed_cl# #ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl#設三堆為X,Y,Z#ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl# #ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl#則第一次移動後為X-Y,2Y,Z#ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl# 第二次移動後為X-Y,2Y-Z,2Z#ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl# 第三次移動後為2X-2Y,2Y-Z,2Z-X+Y#ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl# #ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl#由題意可知2X-2Y=2Y-Z=2Z-X+Y#ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl#又X+Y+Z=936#ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl# #ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl#解其聯立即得X=429,Y=273,Z=234#ed_op#/DIV#ed_cl#J+W 寫到:#ed_op#DIV#ed_cl#現有三堆蘋果,但不清楚每堆有幾個蘋果,只知道三堆的總數是936個。#ed_op#BR#ed_cl#而且如果從第一堆中拿走和第二堆相同的蘋果放入第二堆,再從第二堆中拿走和第三堆相同的蘋果放入第三堆,再從第三堆中拿走和第一堆相同的蘋果放入第一堆,則三堆的蘋果總數會相同。#ed_op#BR#ed_cl#請問這三堆蘋果各有幾個?#ed_op#BR#ed_cl##ed_op#/DIV#ed_cl#