IN a recent maths test five statements were labelled A to E. Statement A was 鈥渋t is an odd two-figure number鈥� and statement C was 鈥渋t is a two-figure number which is an odd perfect square鈥�. The other three statements (whose order I forget) were:
鈥渋t is a two-figure prime鈥�
鈥渋t is a two-figure number which is the sum of two consecutive numbers鈥� and
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鈥渋t is a two-figure number with one odd digit and one even鈥�.
Candidates who chose an easy question were given a particular two-figure number and asked to tick which applied:
A is true B is true C is true D is true E is true
For those whose chose a hard question the boxes had the following different headings and the candidates were asked to tick the box or boxes which were always true:
B implies C C implies D D implies E E implies A A implies B
The box or boxes which should be ticked were the same for both questions.
What was statement D and which of statements A-E were true in the easy question?
A 拢10 book token will be awarded to the sender of the first correct answer opened on Thursday 9 March. The Editor鈥檚 decision is final. Please send entries to: Enigma 808, 快猫短视频, King鈥檚 Reach Tower, Stamford Street, London SE99 0BB.