Find number abc
[6106] Find number abc - If abc87 + 25c27 = 67cba find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 27 - The first user who solved this task is Nasrin 24 T
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Find number abc

If abc87 + 25c27 = 67cba find number abc. Multiple solutions may exist.
Correct answers: 27
The first user who solved this task is Nasrin 24 T.
#brainteasers #math
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50/50

A young man watched as an elderly couple sat down to lunch at McDonald's. He noticed that they had ordered just one meal, and an extra drink cup. As he watched, the old gentleman carefully divided the hamburger in half, then counted out the fries, one for him, one for her, etc, until each had exactly half.

Then the old man poured half of the soft drink into the extra cup and set that in front of his wife. The old man then began to eat, but his wife just sat watching him.

The young man felt sorry for them and asked "I'm sorry to intrude, but would you allow me to purchase another meal for your wife so that you don't have to split your food?"

The old gentleman said, "Oh, no, thank you. But you see, we've been married a long time, and everything has always been shared, 50/50."

The young man said, "Wow! That's commendable." He then turned to the wife and asked, "Aren't you going to eat your share?"

The wife replied "Not yet. It's his turn to use the teeth."

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Brachistochrone problem

In 1697*, Isaac Newton received a copy of Johann Bernoulli's challenge, the long-standing brachistochrone problem. Newton solved it the same day. Bernoulli's new year's present on 1 Jan 1697 to the mathematical world was the problem: “To determine the curved line joining two given points, situated at different distances from the horizontal and not in the same vertical line, along which the mobile body, running down by its own weight and starting to move from the upper point, will descend most quickly to the lower point.”(Bernoulli coined the name from Gr. brachistos, shortest; and chronos, time.) Newton forwarded his solution to the Royal Society—anonymously. When Bernoulli read the solution, he shrewly guessed it was Newton's work. By legend, he said, “I recognize the lion by his paw.”«[* 29 Jan is by the Julian calendar still in use in England at the time. To Bernoulli, in France, on the Gregorian calendar, it was 8 Feb. The year 1697 is is the historical year as we presently use it. But to Newton it was still the civil year of 1696. In England at that time, the year did not increment until the civil new year on 25 Mar. So anything Newton wrote until 25 Mar, he would date as 1696. This ambiguity of the date Newton received the letter is indicated as 29 Jan 1696/7.]
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