[attachimg=152,113]77003[/attachimg] In the table above, is z = 20q ?
(1) q = 3
(2) Each value in the table other than q is equal to the sum of the value immediately above it in the table and the value immediately to its left in the table.
quite interesting. The premise (2)wants to tell you that values other than q(such as r,s...) =the value above it + that in its left. For exemple,z=y+w,v=u+s.Got it? Then we shall move to the next step on the basis of premise(2): z=w+y=v+t+x+v=u+s+s+q+q+u+u+s=3u+3s+2q=3(q+r)+3(r+q)+2q=9q+9q+2q=20q,an affirmative and mere outcoming.
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发表于 2010-4-25 23:28:26
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