Calculate the number 542
[7386] Calculate the number 542 - NUMBERMANIA: Calculate the number 542 using numbers [3, 9, 9, 6, 94, 390] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 1
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Calculate the number 542

NUMBERMANIA: Calculate the number 542 using numbers [3, 9, 9, 6, 94, 390] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
#brainteasers #math #numbermania
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10 yo-yo jokes to celebrate National yo-yo day

1. Why don't yo-yos make good friends?
- Because they always let you down!

2. What did the yo-yo say to the tightrope?
- "Now, that's what I call a string walk!"

3. How do yo-yos cheer each other up?
- They say, "Hang in there, it'll be an up and down ride!"

4. Why was the yo-yo so good at making decisions?
- It always knew how to go back and forth!

5. Why don't yo-yos work in zero gravity?
- They can't deal with the ups and downs!

6. What did the yo-yo say to the super glue?
- "I need someone who won't let go!"

7. Why was the yo-yo the life of the party?
- Because it always knew how to unwind!

8. How did the yo-yo become a successful motivational speaker?
- It always knew how to bounce back!

9. What do yo-yos say when they introduce themselves?
- "I’m not as up-tight as I appear!"

10. Why was the yo-yo accused of being a spy?
- Because it always goes undercover!

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Julius Lothar Meyer

Born 19 Aug 1830; died 11 Apr 1895 at age 64. (Julius) Lothar Meyer was a German chemist who discovered the Periodic Law, independently of Dmitry Mendeleyev, at about the same time (1869). However, he did not develop the periodic classification of the chemical elements as thoroughly as Mendeleyev. Meyer trained originally in medicine and chemistry. He examined the effect of carbon monoxide on blood. In 1879, Meyer compared atomic volume to atomic weight. Plotted on a graph, the curve showed the periodicity of the elements. He also established the concept of valency by indicating that a given element combined with a characteristic number of hydrogen atoms, and coined the terms like univalent, bivalent, and trivalent, based on that number.«
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