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# Find number abc

If 8b76a - ab021 = c07bb find number abc. Multiple solutions may exist.
The first user who solved this task is Nasrin 24 T.
#brainteasers #math

### Broke student

A college freshman called up his mother and asked her for some money, because he was broke. His mother said,

"Sure, sweetie. I will send you some money. You also left your

calculus book here when you visited 2 weeks ago.

Do you want me to send that up too?"

"Uhh, oh yeah, O.K." responded the student.

So his mom wrapped up the book and mailed it. Dad asked,

"Well how much did you give him?"

"Oh, I wrote 2 checks, one for \$20, and the other for \$500."

"That's \$520!" said dad, "Are you crazy?"

"Don't worry honey," mom said. "I taped the \$20 check to the

cover of his book, but I put the \$500 one somewhere in ...

chapter 19!

Found on https://vk.com/notes15935520, posted by Liana Parhanita, on 4 Mar 2010

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## Brain Teasers

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### Queensboro Bridge

In 1909, the first significant double-deck bridge in the U.S. was opened to traffic. The Queensboro Bridge is one of the greatest cantilever bridges in the history of American bridge design. A collaboration between the famed bridge engineer Gustav Lindenthal (1850-1935) and architect Henry Hornbostel, the Queensboro's massive, silver-painted trusses span the East River between 59th Street in Manhattan and Long Island City in Queens. The opening of the Queensboro Bridge was one of, if not the, most important feature to stimulate the continuing development of Long Island City and Queens in general. Before it, Long Island City was isolated and unevenly developed.Image: a period illustration which shows a steamer and a sailing ship passing under the bridge.
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