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2#
發表於 2008-1-24 12:46 AM
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$5 x durian + $1 x mango + $0.05 x rambutan = 100公仔箱論壇6 Y/ f% X$ T, x& W* n9 L% n& x/ `
No. of durian + No. of mango + No. of rambutan = 100
$ i; N1 F' r6 L2 q" r$ d5 n% UThese give
. k$ ^/ v% J+ ^. y& E/ t19 durians, 1 mango and 80 rambutans |
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