Which number should replace the question mark?
[74] Which number should replace the question mark? - Which number should replace the question mark? - #brainteasers #math #riddles - Correct Answers: 303 - The first user who solved this task is Slobodan Strelac
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Which number should replace the question mark?

Which number should replace the question mark?
Correct answers: 303
The first user who solved this task is Slobodan Strelac.
#brainteasers #math #riddles
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For their anniversary, a coupl...

For their anniversary, a couple went out for a romantic dinner. Their teenage daughters said they would fix a dessert and leave it waiting.
When they got home, they saw that the dining room table was beautifully set with china, crystal and candles, and there was a note that read: "Your dessert is in the refrigerator. We are staying with friends, so go ahead and do something we wouldn't do!"
"I suppose," the husband responded dryly, "we could clean the house."
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Francis William Aston

Died 20 Nov 1945 at age 68 (born 1 Sep 1877). English chemist, physicist and chemist who was awarded the 1922 Nobel Prize for Chemistry for his development of the mass spectrograph, a device that separates atoms or molecular fragments of different mass and measures those masses with remarkable accuracy. In 1910 he became an assistant to Sir J.J. Thomson at Cambridge, who was investigating positively charged rays emanating from gaseous discharges. Aston invented his mass spectrograph (a new type of positive-ray apparatus) after WWI, with which he showed that many elements are mixtures of isotopes. In fact, he discovered 212 of the 287 naturally occurring nuclides. The mass spectrograph is now widely used in geology, chemistry, biology, and nuclear physics.
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