SIMPLE MULTIPLICATION.
(
Money Puzzles)
If we number six cards 1, 2, 4, 5, 7, and 8, and arrange them on the
table in this order:--
1 4 2 8 5 7
We can demonstrate that in order to multiply by 3 all that is necessary
is to remove the 1 to the other end of the row, and the thing is done.
The answer is 428571. Can you find a number that, when multiplied by 3
and divided by 2, the answer will be the same as if we removed the first
card (which in this case is to be a 3) From the beginning of the row to
the end?
Answer:
The number required is 3,529,411,764,705,882, which may be multiplied by
3 and divided by 2, by the simple expedient of removing the 3 from one
end of the row to the other. If you want a longer number, you can
increase this one to any extent by repeating the sixteen figures in the
same order.
