BrainTeaser
Answers
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Top cat? Top dog?
1.) The combined weight of the factory's resident dog and cat is 27 lbs. The dog's weight is an odd number, yet the cat's is even. If his weight is twice that of hers, what do each of them weigh?
Answer: The male cat weighs 18 lbs and the female dog weighs 9 lbs.
Bookworm
2.) The AutomationDirect Catalog has gotten thicker each time we've printed it. Volume 10 was approximately 1.5" thick (including the cover) and the volumes have increased in size an average of 1/4" each issue. If the volumes were arranged on the shelf as shown below, and a bookworm started at the first page of volume 10 and ate his way straight to the last page of volume 13, how far would he have traveled? You can assume that the thickness of the covers is 1/16" for all the catalogs.
Answer: Given the way that the books are arranged on the shelf, the distance from the first page of volume 10 to the last page of vol. 13, includes only the front cover of vol.10, plus the entire thickness of volumes 11 and 12, and only the rear cover of Vol 13. This works out to 1/16”, plus 1.75”, plus 2.0”, plus 1/16”, or 3 7/8 inches (or 3.875” if he is a decimal oriented bookworm).
Three Color Techs
3.) Three technicians: Mr. Black, Mr. Blue, and Mr. Red were wiring a control panel, and each was using only a single color of wire: one black, one blue, and one red.
"Have you noticed that none of us is using the color of wire that corresponds to our own name?" asked the man using the red wire.
"You're absolutely right!" replied Mr. Blue
What color of wire was each man using?
Answer: The extra clue here is that Mr. Blue is not using red wire, as he responds to the question asked by the tech who is using the red wire. Since he can’t be using blue wire either, we know that Mr. Blue must be using Black wire. Mr. Black therefore must be wiring with Red wire. And that leaves Blue wire for Mr. Red.
Want to save money on YOUR next wire purchase?
Please visit: www.automationdirect.com/wire
Volume 10, printed in 2005, contained about 5500 products. Volume 13 debuted in May of this year and contains over 8,500 products! If you haven't received your copy, please visit our Web site to request one online, or phone us at 1-800-633-0405.
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Brainteaser Answers, Issue 17, 2010
