How many 5-digit numbers (it...
[4693] How many 5-digit numbers (it... - How many 5-digit numbers (it cannot start with 0) are there that do not contain the numbers 3 and 5, and are multiples of 4? - #brainteasers #math #riddles - Correct Answers: 23 - The first user who solved this task is Manguexa Wagle
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How many 5-digit numbers (it...

How many 5-digit numbers (it cannot start with 0) are there that do not contain the numbers 3 and 5, and are multiples of 4?
Correct answers: 23
The first user who solved this task is Manguexa Wagle.
#brainteasers #math #riddles
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At the doctor's office...

At the doctor's office.
- What bothers you?
- I have a bad memory.
- Ok. What else?
- I have a very bad memory.
- What else?!
- And... I have a really bad memory.
- Yes, I understand that you have a bad memory! What else??
- And I have hearing problems.
- What else?
- What did you say?
- What else?!
- Say it again?
- What else?!
- Ah-ah! And I have a bad memory.
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Louis Braille

Died 6 Jan 1852 at age 43 (born 4 Jan 1809).French educator who developed a tactile form of printing and writing, known as braille, since widely adopted by the blind. He himself knew blindness from the age four, following an accident while playing with an awl. In 1821, while Braille was at a school for the blind, a soldier named Charles Barbier visited and showed a code system he had invented. The system, called "night writing" had been designed for soldiers in war trenches to silently pass instructions using combinations of twelve raised dots. Young Braille realised how useful this system of raised dots could be. He developed a simpler scheme using six dots. In 1827 the first book in braille was published. Now the blind could also write it for themselves using a simple stylus to make the dots.
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