VIEW THE MOBILE VERSION of www.mathpuzzle.ca Informational Site Network Informational
Privacy
Home Top Rated Puzzles Most Viewed Puzzles All Puzzle Questions Random Puzzle Question Search


THE CAB NUMBERS.





(Money Puzzles)
A London policeman one night saw two cabs drive off in opposite
directions under suspicious circumstances. This officer was a
particularly careful and wide-awake man, and he took out his pocket-book
to make an entry of the numbers of the cabs, but discovered that he had
lost his pencil. Luckily, however, he found a small piece of chalk, with
which he marked the two numbers on the gateway of a wharf close by. When
he returned to the same spot on his beat he stood and looked again at
the numbers, and noticed this peculiarity, that all the nine digits (no
nought) were used and that no figure was repeated, but that if he
multiplied the two numbers together they again produced the nine digits,
all once, and once only. When one of the clerks arrived at the wharf in
the early morning, he observed the chalk marks and carefully rubbed them
out. As the policeman could not remember them, certain mathematicians
were then consulted as to whether there was any known method for
discovering all the pairs of numbers that have the peculiarity that the
officer had noticed; but they knew of none. The investigation, however,
was interesting, and the following question out of many was proposed:
What two numbers, containing together all the nine digits, will, when
multiplied together, produce another number (the _highest possible_)
containing also all the nine digits? The nought is not allowed anywhere.


Read Answer






Next: QUEER MULTIPLICATION.

Previous: THE PIERROT'S PUZZLE.



Add to Informational Site Network
Report
Privacy
ADD TO EBOOK




Random Questions

The Puzzle Of The Prioress
CANTERBURY PUZZLES
The Queen's Journey.
The Guarded Chessboard
The Chifu-chemulpo Puzzle
MISCELLANEOUS PUZZLES
Torpedo Practice.
Moving Counter Problem
The Christmas-boxes.
Money Puzzles
The Secret Lock
THE STRANGE ESCAPE OF THE KING'S JESTER
The Cross Of Cards.
Problems Concerning Games.
The Eccentric Cheesemonger.
Moving Counter Problem
The Twickenham Puzzle.
Moving Counter Problem
The Skipper And The Sea-serpent
MISCELLANEOUS PUZZLES
The Suffragists' Meeting.
Money Puzzles
The Two Pawns.
The Guarded Chessboard
The Potato Puzzle.
Various Dissection Puzzles
The Antiquary's Chain.
Combination and Group Problems
The Football Players.
Problems Concerning Games.