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Beads question PnC
by Anisha Ani - Tuesday, 17 November 2015, 12:22 PM
  There are 4 beads of different colors. How many different key chains can be made using these beads if each key chain has a different arrangement of beads and all key chains have 4 beads?

Options:24, 64, 256 and 12

Too much confusion in the question. What is the answer to this?