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Topic History of: Fascinating Maths man on BBC Brekkie
Max. showing the last 5 posts - (Last post first)

Author	Message
Henny Luckitt	It's not maths but ask a mathematician to take both hands out of his trouser pockets and give them both a sniff. The odd thing is, one hand will smell of fish and the other one of cheese. Always.
Jim	It's easy. All you need is algebra. Let the age be given by tu, where t is the tens digit and u is the units digit. Then the sum of the digits will be t + u. Deducting the sum from the original number we get 10t + u - t - u = 9t Note that 9t is a multiple of 9. Furthermore, t is likely to be 9 or less..refer to original age. In any multiple of 9 up to 81, as is well known to primary school learners of times tables, the sum of the two digits is 9.
Mr Reason	I know a similar phenomenon.......take a star sign, talk about Mars in Uranus and the effect of the star stream through the middle of the month............and you'll have a long and happy life..........you know where i'm going? .....listen to that, think about it, and come to the same conclusion each time that its always bllcks : - )
JK2006	Rather irritatingly calls himself and everyone interested a "Mathlete" (typical American marketing tool) but did say - take your age (68); add them together (6+8=14); then deduct 14 from your age (54) and add the two together (5+4) - it ALWAYS reaches 9. It works! Why?