Find number abc
[7988] Find number abc - If 1587b + 7a7ab = bc628 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 0
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Find number abc

If 1587b + 7a7ab = bc628 find number abc. Multiple solutions may exist.
Correct answers: 0
#brainteasers #math
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Assignment Difficulty

An elementary school teacher decides to pole the class on the difficulty of last night's homework assignment:
How many people were able to complete the assignment without parents help?
About 25% of the class raises their hands. How many people we able to complete the assignment with the help of a parent? About 70% of the class raises their hand. The teacher still notices about 5% of the class did not raise their hands.
She then calls out, "How many people had to help a parent complete your assignment?

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Kinetoscope parlor

In 1894, the first Kinetoscope parlor opened in New York with five machines. For 25 cents, customers looked through a peephole to view a short film. A motorized film loop was threaded around a number of rollers within a wooden cabinet. Thomas Edison invented these early motion picture machines to do "for the eye what the phonograph does for the ear." After several years of effort, by 1892, Edison with W.K.L. Dickson, had invented the "kinetograph" - a camera to take motion pictures. Edison then began producing films to exhibit. The machines sold for $250 each, but within a year, competitors entered the market, and public interest declined sharply. By then, however, the era of projected pictures had already dawned.«
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