There are four three-digit n...
[4811] There are four three-digit n... - There are four three-digit numbers that share this property: the number itself, its double and its triple contain each digit from 1 to 9 exactly once. For example, 192 is one of them because 192, 384, 576 contain 1 to 9 each once. 273 is another one of them because 273, 546, 819 contain 1 to 9 each once. Can you find the other two numbers and calculate the product of these two numbers? - #brainteasers #math #riddles - Correct Answers: 23 - The first user who solved this task is Djordje Timotijevic
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There are four three-digit n...

There are four three-digit numbers that share this property: the number itself, its double and its triple contain each digit from 1 to 9 exactly once. For example, 192 is one of them because 192, 384, 576 contain 1 to 9 each once. 273 is another one of them because 273, 546, 819 contain 1 to 9 each once. Can you find the other two numbers and calculate the product of these two numbers?
Correct answers: 23
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #riddles
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Free sex

There was this gas station in "redneck country" trying to increase its sales, so the owner put up a sign saying "Free Sex with Fill-up."

Soon a "redneck" customer pulled in, filled his tank, and then asked for his free sex.

The owner told him to pick a number from (1) to (10), and if he guessed correctly, he would get his free sex.

The buyer then guessed (8) and the proprietor said, "No, you were close. The number was (7). Sorry, no free sex this time but maybe next time".

Some time thereafter, the same man, along with his buddy this time, pulled in again for a fill-up, and again he asked for his free sex.

The proprietor again gave him the same story and asked him to guess the correct number. The man guessed (2) this time, and the proprietor said, "Sorry, it was (3). You were close but no free sex this time".

As they were driving away, the driver said to his buddy, "I think that game is rigged and he doesn't give away free sex".

The buddy replied, "No, it's not rigged -- my wife won twice last week."

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Christian Konrad Sprengel

Died 7 Apr 1816 at age 65 (born 22 Sep 1750). German botanist and teacher whose studies of sex in plants led him to a general theory of fertilization which, basically, is accepted today. Although director of a school at Spandau and tutor in Berlin, he devoted himself chiefly to the study of flowering plants. Sprengel's 1793 treatise [illustration at left] on floral structure examines the ways that flower colors, scents, shapes, and markings work harmoniously to attract insects for pollination. A clergyman and botanist, he spent his life researching the role played by the wind and insects in the fertilization of flowers. Although Sprengel's work was neglected by his contemporaries, Charles Darwin later praised Sprengel's work and brought it brought to public attention.
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