Tuesday 8 June 2010

Math Quiz (2)


If there are FIVE people in a room and each shakes hand exactly once with everyone else in the room, how many handshakes will there be?
(Hint: Act it out or draw a diagram to help you.)
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2 comments:

  1. Valencia Seow Jia Hui5 August 2010 at 20:55

    10 people are shaking their hand and it makes into a star inside a sqaure.

    ReplyDelete
  2. jan17 September 2010 at 11:21

    i think 25?

    ReplyDelete

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