The names given to the various lines of a tooth on a gear-wheel are as follows: In Figure 233, A is the face and B the flank of a tooth, while C is the point, and D the root of the tooth; E is the height or depth, and F the breadth. P P is the ... Read more of Drawing Gear Wheels at How to Draw.caInformational Site Network Informational
Privacy
Home Top Rated Puzzles Most Viewed Puzzles All Puzzle Questions Random Puzzle Question Search


QUEER MULTIPLICATION.





(Money Puzzles)
If I multiply 51,249,876 by 3 (thus using all the nine digits once, and
once only), I get 153,749,628 (which again contains all the nine digits
once). Similarly, if I multiply 16,583,742 by 9 the result is
149,253,678, where in each case all the nine digits are used. Now, take
6 as your multiplier and try to arrange the remaining eight digits so as
to produce by multiplication a number containing all nine once, and once
only. You will find it far from easy, but it can be done.


Read Answer






Next: THE NUMBER-CHECKS PUZZLE.

Previous: THE CAB NUMBERS.



Add to del.icio.us Add to Reddit Add to Digg Add to Del.icio.us Add to Google Add to Twitter Add to Stumble Upon
Add to Informational Site Network
Report
Privacy
SHAREADD TO EBOOK




Random Questions

Puss In The Corner.
Puzzle Games.
Painting The Die.
Combination and Group Problems
The Mysterious Rope
THE STRANGE ESCAPE OF THE KING'S JESTER
The Potato Puzzle.
Various Dissection Puzzles
Magic Squares Of Two Degrees.
Magic Squares Problem.
The Hat-peg Puzzle.
Chessboard Problems
The Board In Compartments.
The Guarded Chessboard
The Digital Century.
Money Puzzles
The Runaway Motor-car
Adventures of the Puzzle Club
A Charitable Bequest.
Money Puzzles
The Tapiser's Puzzle
CANTERBURY PUZZLES
Lady Isabel's Casket
THE MERRY MONKS OF RIDDLEWELL
The Broken Chessboard
MISCELLANEOUS PUZZLES
A Printer's Error.
Money Puzzles
The Knight's Puzzle
CANTERBURY PUZZLES