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BlackRock Interview Puzzle

BlackRock Interview Puzzle - 23 March

In a party, there are five people and a whole round cake lying at the center of table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table.

How can they make sure that everyone gets a 1/5th of piece?



For Solution : Click Here

3 comments:

  1. Cut cake from centre height wise then from above make a cut from midlle to boundary then make another two cuts from boundary to middle dividing cake into 2/5 each and another 1/5.

    ReplyDelete
  2. There is a more creative solution.
    Instead of cutting the cake vertically, the folks would slice it horizontally.
    Only 4 cuts are required to have 5 equal round slices, like this:

    xxxxx
    cut 1
    xxxxx
    cut 2
    xxxxx
    cut 3
    xxxxx
    cut 4
    xxxxx

    ReplyDelete
    Replies
    1. Perfect!
      Your answer is like mine.

      Delete