Official papers

Official 2020 Paper 2 · Q4

Paper 2Logic & proofNumber & counting

Consider the following statement:

Every positive integer NN that is greater than 6 can be written as the sum of two non-prime integers that are greater than 1.

Which of the following is/are counterexample(s) to this statement?

  • I N=5N=5
  • II N=7N=7
  • III N=9N=9
Anone of them
BI only
CII only
DIII only
EI and II only
FI and III only
GII and III only
HI, II and III

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