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Dee-M-See | 14:29 Wed 06th Sep 2006 | Quizzes & Puzzles
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Find a number
Whos half, exceeds its third, by the sum of two digits
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It's 54
Question Author
The numbers problem should read BY THE SUM OF ITS TWO DIGITS
Sorry
I think that the question should read "Find a two-digit number ..."

If the digits are x and y, then the number is 10x + y. The difference between one half and one third is one sixth.
Hence (10x + y)/6 = x + y (the sum of the digits)
Multiply through by 6 to get 10x + y = 6x + 6y
That is 4x = 5y.
This means that x = 5 and y = 4; and the number is 54.
...and presumably 'WHOSE half'.
Question Author
Thank you both kindly for the answers and the lessons in Maths and English
Should have paid more attention in my school days

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