Find number abc
[3531] Find number abc - If 32b5c + c2a3a = aab5c9 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 59 - The first user who solved this task is Linda Tate Young
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Find number abc

If 32b5c + c2a3a = aab5c9 find number abc. Multiple solutions may exist.
Correct answers: 59
The first user who solved this task is Linda Tate Young.
#brainteasers #math
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The interested doctor

A concerned woman phones a doctor and says, "Doctor, I'm worried about my husband. He thinks he's a dog!"

"I'm coming over right away," the doctor says.

When the doctor arrives, the woman opens the door, and her husband, on all four, starts wagging his bottom and licking the doctor's hand.

"Interesting", the doctor says, startled. "I'll examine him. Make him lie down on the sofa."

"Doctor", the woman says, "I can't! He's not allowed the sofa!"

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Phototransistor

In 1950, the invention of the phototransistor was announced. This was a transistor operated by light rather than electric current, invented by Dr. John Northrup Shive of the Bell Telephone Laboratories at Murray Hill, N.J. It used a tiny chip of germanium, a semiconductor material, but only a single collector wire. The tip of this wire rests in a small dimple ground into one side of the germanium disk. At this point the germanium disk is only three thousandths of an inch thick. Light focussed on the opposite, un-dimpled side of the disk can control the flow of current in the wire, thus making a control device similar in function to a photo-electric cell.
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