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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They Cheated

Once two star football players had failed a test, and could not play football in the championship game.
So, after much begging from the coach, the teacher finally let the two take the test again.
They took the test, and turned it in.
The coach and the two students watched carefully over the teacher grading the tests. She checked over the first test, then over the second test. Half way through the second test she stopped and put a great big 'F' on both tests.
The coach was furious and demanded an explanation. She said that they had cheated. 'Why?' the coach asked.
The teacher showed him number six. The coach looked at number six on the first test.
The answer read 'I don't know.' The coach said that it did not prove anything.
The teacher handed him the second test. The answer read 'I don't know either.'

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Elevator

In 1857, the first department store elevator for passengers was installed at E.V. Haughwout & Co. in New York City. Elisha Graves Otis was the inventor, who had sold his first safety elevator machine for freight only four years earlier, on 20 Sep 1853, the year in which he started in that business. Shortly thereafter, in May 1954, at the Crystal Palace in New York City, he created public interest with a daring demonstration. He was hoisted high in the air on a platform fitted with his safety feature. When he called for the rope to be cut, the safety device stopped his fall. As he continued to collect orders, he continued to invent ways to improve the elevators he manufactured. By 1889 he used the electric motor to power elevators.«
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