let h=HAT, b=BOX, then
9(1000h+b)=4(1000b+h)
=>8996h=3991b
=>h/b=8996/3991=692/307
=>h=692, b=307
307692 692307 别人帮算的.
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回复:307692 692307 别人帮算的.
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09/10/2009 postreply
19:38:50