Find number abc
[7397] Find number abc - If babcb - 5990b = a7c0 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 11
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Find number abc

If babcb - 5990b = a7c0 find number abc. Multiple solutions may exist.
Correct answers: 11
#brainteasers #math
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Married or Divorced

In my Sunday school class the focus was marriage or divorce, "The rapidly increasing divorce rate," remarked one member of the group, "indicates that America is indeed becoming the land of the free."
"Yes," replied the prosaic friend, "but the continued marriage rate suggests that America is still the home of the brave."

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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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