4. Twelve people are seated around a circular table. In how many ways
working write the number of the question in the
can six pairs of people engage in handshakes so that no arms cross?
top left hand corner and your name, initials and
school in the top right hand corner.
(Nobody is allowed to shake hands with more than one person at once.)
• Complete the cover sheet provided and attach it to
the front of your script, followed by the questions
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