Find number abc
[7791] Find number abc - If 4410c + 67ab0 = 111bbc find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 7
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Find number abc

If 4410c + 67ab0 = 111bbc find number abc. Multiple solutions may exist.
Correct answers: 7
#brainteasers #math
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I Have A Question

A father and son went fishing one day. While they were out in the boat, the boy suddenly became curious about the world around him. He asked his father, "How does this boat float?
The father replied, "Don't rightly know son." A little later, the boy looked at his father and asked, "How do fish breath underwater?"
Once again the father replied, "Don't rightly know son." A little later the boy asked his father, "Why is the sky blue?"
Again, the father repied. "Don't rightly know son." Finally, the boy asked his father, "Dad, do you mind my asking you all of these questions?"
The father replied, "Of course not, you don't ask questions, you never learn nothin'."
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Francium

In 1930, the element Fr (francium) was discovered, the last naturally occurring element to be found. It is the heaviest alkali metal atom, with atomic number 87. Marguerite Pereyjoined (Oct 1929) the Institut du Radium in Paris in Oct 1929 as a technician for Marie Curie. Perey worked for years on actinium, which was anticpated to produce the new element by alpha decay. Finally, she was able to make thefirst entry about francium in her lab notebook on 7 Jan 1939, recording its half-life as about 20 minutes. A note in the Comptes Rendus was presented at the Académie des Sciences by Jean Perrin (9 Jan 1939). In his periodic table, Mendeleev anticipated its discovery, and provisionally named it eka-cesium. Perey gave it the name “francium.” She first used the symbol Fa, but changed it to Fr.«[Previously on this site as discovered 11 Jan 1930.]
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