The Renaissance mathematician Niccolò Tartaglia would use this bewildering riddle to assess neophytes in logic:
If half of 5 were 3, what would a third of 10 be?
What’s the answer?
The question asks us to discover whatever strange factor could cause 5/2 to give the result 3, and to apply the same factor to 10/3. So:
5/2 : 3 = 10/3 : x
Solving for x gives the result 4.
October 22, 2012 | Puzzles
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