CORRESPONDENCE
G. Tisbury (Invercargill): Was a little mystified by the Mystifying Race, but will see now that the jumps of the cat and dog were supposed to overlap the distance. If this had not been so, the race would have been no race, His other answers he will be able to compare with ours, and his request for further information about Time for the Guard was anticipated in the last issue. Rob (Ahipara): Has spoiled a little game Lillian has been playing. He has picked that the Draughts problem, and the problem Move the Money, were the same in reverse. Lillian saw the opportunity to make the draughts problem into the same sort of problem as Move the Money, but the trick has evidently been too obvious. Rob sends a variant of a shunting problem, which will be used. L.W.R. (Nelson): Not quite full marks, but 100 per cent for industry. P.J.Q. (Motueka); Sends news that he and General Martin are completing the disposition of their forces before doing battle. He sends answers, but he has not examined Move the Money with sufficient care. X.G.T. (Kopuawharo): Sends some answers and seems to be quite unrepentant about his
fength for the train, in spite of the fact that W. Robinson said it took the biscuit. He picked the method for solving Pat and the Pig, but points out that the end of the ellipse of Pat’s track would be so close to the straight line run by the pig that Pat could easily catch it before he reached -the exact mathematical point where they would meet. E.A.C, (Wellington): Suggests a compression of T.M.C,’s formula for finding the sum of the cubes of consecutive numbers starting with 1 and ending with n. T.M.C. said this would be the square of the sum of the same num-
bers. A.E.C. wants this put with more mathe matical obscurantism, so he suggests that the sum of the first n. numbers is n/2(n+1), as the numbers are in arithmetical progression, so that the formula is: (n/2(n-+1) ) squared which equals 44n sqd. (n+1) squd. E.A.C. also sends other mathematical roguery which will be used when possible, and explains, in answer to our invitation, that he is too shy to come into the office and look at the files. Let him have no fear. We keep the Editor tucked away in his own room, and the rest of us are innocuous.
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New Zealand Listener, Volume 3, Issue 67, 4 October 1940, Page 17
Word count
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403CORRESPONDENCE New Zealand Listener, Volume 3, Issue 67, 4 October 1940, Page 17
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