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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The Date

A man drives his date up to lovers lane and parks. "I have to be honest with you" the woman says as the guy makes his move."I`m a hooker".
The man thinks about this for a bit and decides he`s ok with it. He agrees to pay her $25 and they go at it.

After they finish, the guy says,

"Now I should be honest too. I`m a cab driver and its going to cost you $25 to get back to town".

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Parts standardization

In 1813, for the first time in the U.S., a requirement for standardization in factory production became part of a federal government contract which specified interchangeable parts. Twenty thousand pistols were ordered from the contractor, Col. Simeon North of Berlin, Conn. to be made such that "component parts of the pistols are to correspond so exactly that any limb or part of one pistol may be fitted to any other pistol of the 20,000." The contract price was $7 per pistol, to be delivered over a five year period. Since 1810, Col. North had already owned a pistol factory in Middletown, Conn., and produced the pistols at the rate of about 10,000 per year.
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