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boxes containing green balls

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boxes containing green balls

by sanju09 » Wed Jan 13, 2010 4:33 am
There are 6 boxes numbered 1 through 6. Each box is to be filled up either with a red or a green ball in such a way that at least 1 box contains a green ball and the boxes containing green balls are consecutively numbered. What is the total number of ways in which this can be done?
(A) 5
(B) 21
(C) 27
(D) 33
(E) 60
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by TJ_Believes_Yes_U_Can » Wed Jan 13, 2010 8:25 am
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