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PS necklace [#permalink] New post 13 Jun 2005, 15:59
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:) hello

:? the number n has to be a multiple of 4 since it iscomplete the pattern
the first red the last white
so we can cancel c and d
and may be A since the number of patterm could be to small for the necklace

does anyone has a clue to deal with that one thanks
A necklace is made by stringing N individual beads together in the repeating pattern red bead, green bead, white bead, blue bead, and yellow bead. If the necklace design begins with a red bead and ends with a white bead, then N could equal.
(A) 16
(B) 32
(C) 41
(D) 54
(E) 68
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 [#permalink] New post 13 Jun 2005, 16:44
The necklace pattern is R G W B Y (R = red, g = green etc.)

So, we have R G W B Y R G W B Y ..... R G W (I may be wrong here since this is what I assume the question meant :-D )

So, we are increasing the beads by 5 until we get to the R G W sequence.

So, 5x + 3 = N.

We will get an integer value for x only if N = 68.

So, I am going with E.
  [#permalink] 13 Jun 2005, 16:44
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