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Football is generally a black and white are two colors of skin sewing made. Black leather pieces is

houzhongliuguo2010-03-24 08:11:38 +0000 #1
If a ball a total of black and White block 32. Black, White block the respective numbers? To have the process and answers.
u_look_like_sb2010-03-24 08:28:14 +0000 #2
set up a black block number x is a white block 5x-10x / 3 (black block adjacent each of five white blocks, and each white block with the three black block adjacent), so

x +5 x-10x / 3 = 32

16/6x = 32

x = 12

so black block 12 white blocks 20
kksl12342010-03-24 08:30:17 +0000 #3
Black 12 White 20

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