CAIE S1 2007 November — Question 3

Exam BoardCAIE
ModuleS1 (Statistics 1)
Year2007
SessionNovember
TopicPermutations & Arrangements
TypeArrangements with positional constraints
3 The six digits 4, 5, 6, 7, 7, 7 can be arranged to give many different 6-digit numbers.
  1. How many different 6-digit numbers can be made?
  2. How many of these 6-digit numbers start with an odd digit and end with an odd digit?
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Q1 Q2 Q3 Q4 Q5 Q6 Q7