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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A doctor, a lawyer, a little boy and a priest...

A doctor, a lawyer, a little boy and a priest were out for a Sunday afternoon flight on a small private plane. Suddenly, the plane developed engine trouble.

In spite of the best efforts of the pilot, the plane started to go down. Finally, the pilot grabbed a parachute, yelled to the passengers that they had better jump, and bailed out.

Unfortunately, there were only three parachutes remaining. The doctor grabbed one and said "I'm a doctor, I save lives, so I must live," and jumped out.

The lawyer then said, "I'm a lawyer and lawyers are the smartest people in the world. I deserve to live."

He also grabbed a parachute and jumped.

The priest looked at the little boy and said, "My son, I've lived a long and full life. You are young and have your whole life ahead of you. Take the last parachute and live in peace."

The little boy handed the parachute back to the priest and said, "Not to worry, Father. The 'smartest man in the world' just took off with my back pack."

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Sound barrier broken by rocket

In 1934, the first rocket fired in America to break the sound barrier was lanched by the American Rocket Society from Marine Park, Staten Island, New York. The rocket, named ARS-4, had a single thrust chamber with four canted nozzles. Its flight reached a top speed of 700 mph, a maxium height of 400-ft,1,600-ft horizontal range and ended in New York Bay. On an earlier attempt, 10 Jun 1934, it did not fly because the fuel ports were too small. The society was founded on 4 Apr 1930, originally named the American Interplanetary Society. Their pioneering work designing and testing several liquid-fuelled rockets led the way to the U.S. space program.«*
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