Give your mind a mathematical workout.
Test, prod, and stretch your wits to the outer limits. Even if you’re extra clever, you might get stumped, but we guarantee you'll enjoy every minute of it! Sharpen your smarts on a combination of original puzzles, and classic teasers with new twists. Some have surprising answers, but none involve advanced math. Try this one:
Many years ago, a farmer had 200 shekels with which to purchase 100 animals. Cows cost 20 shekels apiece, pigs cost 6 shekels apiece, while a sheep could be purchased for a single shekel. Assuming that he had to purchase at least one of each of the three animals, and assuming that he had to use all of his money, how many of each kind of animal did he purchase?
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Seller: Bay State Book Company, North Smithfield, RI, U.S.A.
Condition: very_good. Seller Inventory # BSM.1BGJD
Seller: -OnTimeBooks-, Phoenix, AZ, U.S.A.
Condition: good. A copy that has been read, remains in good condition. All pages are intact, and the cover is intact. The spine and cover show signs of wear. Pages can include notes and highlighting and show signs of wear, and the copy can include "From the library of" labels or previous owner inscriptions. 100% GUARANTEE! Shipped with delivery confirmation, if you're not satisfied with purchase please return item! Ships via media mail. Seller Inventory # OTV.1454909730.G
Seller: HPB-Red, Dallas, TX, U.S.A.
paperback. Condition: Very Good. Connecting readers with great books since 1972! Used textbooks may not include companion materials such as access codes, etc. May have some wear or limited writing/highlighting. We ship orders daily and Customer Service is our top priority! Seller Inventory # S_482153679
Seller: HPB-Diamond, Dallas, TX, U.S.A.
paperback. Condition: Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority! Seller Inventory # S_456220291
Seller: Once Upon A Time Books, Siloam Springs, AR, U.S.A.
paperback. Condition: Good. This is a used book in good condition and may show some signs of use or wear . This is a used book in good condition and may show some signs of use or wear . Seller Inventory # mon0001424324
Seller: ThriftBooks-Dallas, Dallas, TX, U.S.A.
Paperback. Condition: Fair. No Jacket. Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less. Seller Inventory # G1454909730I5N00
Seller: ThriftBooks-Atlanta, AUSTELL, GA, U.S.A.
Paperback. Condition: Very Good. No Jacket. May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less. Seller Inventory # G1454909730I4N00
Seller: ThriftBooks-Atlanta, AUSTELL, GA, U.S.A.
Paperback. Condition: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less. Seller Inventory # G1454909730I3N00
Seller: ThriftBooks-Dallas, Dallas, TX, U.S.A.
Paperback. Condition: Very Good. No Jacket. May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less. Seller Inventory # G1454909730I4N00
Seller: Better World Books: West, Reno, NV, U.S.A.
Condition: Very Good. Pages intact with possible writing/highlighting. Binding strong with minor wear. Dust jackets/supplements may not be included. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good. Seller Inventory # 1381950-6