Find number abc
[3956] Find number abc - If ca9c9 + a3479 = 12043b find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 35 - The first user who solved this task is Thinh Ddh
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Find number abc

If ca9c9 + a3479 = 12043b find number abc. Multiple solutions may exist.
Correct answers: 35
The first user who solved this task is Thinh Ddh.
#brainteasers #math
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Half sisters

One Sunday morning Joe burst into the living room and said: "Dad, Mom, I have some great news for you! I am getting married to the most beautiful girl in town. She lives a block away and her name is Susan."

After dinner, Joe's dad took him aside and said: "Son, I have to talk with you. Your mother and I have been married 30 years. She's a wonderful wife but she has never offered much excitement in the bedroom, so I used to fool around with women a lot. Susan is actually your half-sister, and I'm afraid you can't marry her."

Joe was heartbroken. After eight months he eventually started dating girls again. A year later he came home and very proudly announced: "Dianne said yes! We are getting married in June."

Again his father insisted on another private conversation and broke the sad news: "Diane is your half-sister too, Joe, I am very sorry about this."

Joe was furious. He finally decided to go to his mother with the news.

"Dad has done so much harm. I guess I am never going to get married," he complained. "Every time I fall in love, Dad tells me the girl is my half-sister."

His mother just shook her head and said: "Don't pay any attention to what he says, dear. He's not really your father."

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First xenon compound

In 1962, the first compound of any “inert gas” was made by Neil Barlett by reacting platinum hexafluorideand xenon to form XePtF6, a yellow-orange solid that was stable at room temperature. The previous autumn, he had prepared a remarkable compound of oxygen with platinum hexafluoride. In that compound, [O2]+[PtF6]–, the platinum hexafluoride, PtF6 was such an extreme oxidizer that the oxygen formed a positive cation. Interestingly, the energy to remove an electron from oxygen (12.2 eV), he realized, was extremely close to that for xenon (12.13 eV). This suggested a xenon compound could be made in a similar way. His success ended the half-century belief that xenon was an inert gas, and is since known as a “noble” gas.«
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