help me with this amazing problem. i have it in a doc file as i dont have paint (Rofl)

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- May 2nd 2009, 07:00 AMadhyetathe chessboard
help me with this amazing problem. i have it in a doc file as i dont have paint (Rofl)

- May 2nd 2009, 07:01 AMadhyeta
i also have a hint(almost the complete solution) which leads me nowhere...i can gve that to if you need.

- May 2nd 2009, 07:44 AMPlato
You will end up eight distinct numbers $\displaystyle a,~b+8,~c+16,~d+24,~e+32,~f+40,~g+48,~h+56$.

Each of a,b,c,d,e,f,g,h is distinct and between 0 & 9.

So the sum $\displaystyle a+b+c+d+e+f+g+h=36$

What is $\displaystyle \sum\limits_{k = 1}^7 {8k} = ?$ - May 2nd 2009, 07:49 AMadhyeta
(Clapping)(Clapping)(Clapping)(Clapping)(Clapping)

its 224 + the 36 makes it 260.

but could you explain again how you got those two observations?

(Nerd) - May 2nd 2009, 08:01 AMPlato