Find number abc
[5975] Find number abc - If 47aba - a90cb = 2c04c find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 23 - The first user who solved this task is Nasrin 24 T
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Find number abc

If 47aba - a90cb = 2c04c find number abc. Multiple solutions may exist.
Correct answers: 23
The first user who solved this task is Nasrin 24 T.
#brainteasers #math
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The Watch

Little Johnny sees that his friend at school has a new watch so he asks him how he got it.
"I waited until I heard the bedsprings squeaking in my folk's bedroom and then I ran in. My father gave me a watch to get rid of me.", replied the little friend.
Little Johnny, thinking that this was a cool idea waited that night until he heard the bedsprings squeaking rhythmically and then ran into his folk's bedroom.
"What do you want!", asked the father gruffly.
"I want a watch!", said Johnny.
"Well sit down and shut up!", replied the father.     

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Transistor hearing aid

In 1952, the first transistor hearing aid went on sale, the model 1010 manufactured by the Sonotone Corporation in Elmsford, NY, U.S. It weighed 3.5-oz, measured 3"x1.5"x0.6" and cost $229.50 (about $1500.00 today). It was a hybrid device consisting of two sub miniature pre-amplifier tubes and a single transistor as the final audio amplifier to benefit from the low power consumption of transistors. The reason for the hybrid design was that the first junction transistors had signal to noise ratios which were inferior to tubes. Within months, transistor production techniques were improved largely eliminating noise, so the hybrid model was shortly discontinued.
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