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Evening Post, Volume CIV, Issue 68, 17 September 1927, Page 20

two figures there are obviously two ways, with three there are six, with six there are no fewer than, seven hundred and twenty, commencing for calculation purposes with the unit. "With tea figurea the number would exceed three times the population of New Zealand. VW.B.'s curiosities noted with thank" There are numerous examples. W.M.—lf the first distance be more than two-thirds of the second it is solved very simply. Multiply the first by three and subtract the second and the result will be the full length in every case. B.B.: As the account showed a purchase of 8 1-3 dozen at Us each, 3 per cent, on that amount would obviously equal 21 per cent, on the ten dozen. ■ •• C.C.A.: Thanks. Interesting and I think original, though in mathematics nothing can really be "new." The items are perhaps too technical for the averago reader, but will look into them and endeavour to evolve a few simple problems on their bases.