Find number abc
[6941] Find number abc - If ab8bc + baab4 = 1aa1b1 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 31 - The first user who solved this task is Nasrin 24 T
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Find number abc

If ab8bc + baab4 = 1aa1b1 find number abc. Multiple solutions may exist.
Correct answers: 31
The first user who solved this task is Nasrin 24 T.
#brainteasers #math
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Wandering Dog

An old, tired-looking dog wandered into the yard. I could tell from his collar and well-fed belly that he had a home.
He followed me into the house, down the hall, and fell asleep on the couch. An hour later, he went to the door, and I let him out. The next day he was back, resumed his position on the couch and slept for an hour. This continued for several weeks. Curious, I pinned a note to his collar: 'Every afternoon your dog comes to my house for a nap.'

The next day he arrived with a different note pinned to his collar: 'He lives in a home with four children -- he's trying to catch up on his sleep. Can I come with him tomorrow?'

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Edison phonograph

In 1877, Thomas Edison demonstrated his hand-cranked phonograph that recorded sound onto tinfoil cylinders. Although 12 Aug 1877, is often given as the date of this invention, it may have been only at the stage of a sketch, since Edison did not file for the patent until 24 Dec 1877. The idea came to Edison while working on a telegraph transmitter, when he noted that when the the tape of the machine was played at high speed, it gave off a noise resembling spoken words. After experimenting with a needle attached to the diaphragm of a telephone receiver to prick paper tape to record a message, his idea evolved to using a stylus on a tinfoil cylinder.«*
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