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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Like an olympic sprinter

Three women were sitting around talking about their sex lives.

The first said, “I think my husband’s like a championship golfer. He’s spent the last ten years perfecting his stroke.”

The second woman said, “My husband’s like the winner of the Indy 500. Every time we get into bed he gives me several hundred exciting laps.”

The third woman was silent until she was asked, “Tell us about your husband.”

She thought for a moment and said, “My husband’s like an Olympic sprinter.”

“He’s got his time down to under 11 seconds.”

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Electric motor

In 1904, the first direct current, interpole, electric motor to be patented in the U.S. was issued to Mathias Pfatischer of Phildadelphia, Pennsylvania under the title "Variable Speed Motor" (No.775,310). His improvement was to "effect commutation without sparking, with a variable load as well as at variable speed and which is capable of rotation in either direction." The new design added auxiliary-field pole-pieces which were small as compared to the main pole-pieces.«
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