A book costs $1 plus half it...
[5146] A book costs $1 plus half it... - A book costs $1 plus half its price. How much does it cost? - #brainteasers #math #riddles - Correct Answers: 69 - The first user who solved this task is Djordje Timotijevic
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A book costs $1 plus half it...

A book costs $1 plus half its price. How much does it cost?
Correct answers: 69
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #riddles
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The Crowded Store

It was the day of the big sale. Rumors of the sale (and some advertising in the local paper) were the main reason for the long line that formed by 8:30, the store's opening time, in front of the store.
A small man pushed his way to the front of the line, only to be pushed back, amid loud and colorful curses. On the man's second attempt, he was punched square in the jaw, and knocked around a bit, and then thrown to the end of the line again. As he got up the second time, he said to the person at the end of the line...
"That does it! If they hit me one more time, I won't open the store!"
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Frederick George Donnan

Died 16 Dec 1956 at age 86 (born 5 Sep 1870).British chemist, born in Ceylon, whose research contributed to the development of colloid chemistry. He is remembered for his investigation of the Donnan Effect (1911) which advanced the understanding of the living cell. This is the effect of a semi-permeable membrane between two electrolytes and the electrical potential thereby produced. In other work with soap solutions, he related the efficiency of hydroxyl ions in the emulsification of oils to the formation of soaps on the surface of the drops. In wartime, he worked on the industrial-scale synthesis of ammonia and nitric acid. He was blind in one eye.«
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