Find number abc
[7073] Find number abc - If bc7aa + cbc5a = 1aa1b6 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 15 - The first user who solved this task is Fazil Hashim
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Find number abc

If bc7aa + cbc5a = 1aa1b6 find number abc. Multiple solutions may exist.
Correct answers: 15
The first user who solved this task is Fazil Hashim.
#brainteasers #math
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Welfare Office

A woman went down to the Welfare Office to get aid.

The office worker asked her, "How many children do you have?"

"Ten," she replied.

"What are their names?" he asked.

"David, David, David, David, David, David, David, David, David and David," she answered.

"They're all named David?" he asked "What if you want them to come in from playing outside?"

"Oh, that's easy," she said. "I just call 'David,' and they all come running in."

"And, if you want them to come to the table for dinner?"

"I just say, 'David, come eat your dinner'," she answered.

"But what if you just want ONE of them to do something?" he asked.

"Oh, that's easy," she said. "I just use their last name!"

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Simon Lake submarine patent

In 1896, inventor Simon Lake was issued a U.S. patent for his "Submarine Locomotive" (No. 557,835), which he designed with underwater salvage operations in mind. It was fitted with traction wheels to travel the water-bed, and a crane hoist at the front. A diver's compartment with a bottom door could be filled with compressed air at the same pressure as the surrounding water to enable the diver to exit and enter the vessel underwater to have "an aperture on one side closed by means of a vibratory disphragm, and a combined air-supply and speakingtube connecting ... with a diver's helmet." He improved his design with a later patent issued 20 Apr 1897 (No. 581,213). On 16 Dec 1897 he demonstrated submarine Argonaut.«
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