Find number abc
[4140] Find number abc - If 69a62 - a1b6a = abc99 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 40 - The first user who solved this task is Thinh Ddh
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Find number abc

If 69a62 - a1b6a = abc99 find number abc. Multiple solutions may exist.
Correct answers: 40
The first user who solved this task is Thinh Ddh.
#brainteasers #math
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Double Martini

A businessman enters a tavern, sits down at the bar, and orders a double martini on the rocks.
After he finishes the drink, he peeks inside his shirt pocket, then orders the bartender to prepare another double martini.
After he finishes that it, he again peeks inside his shirt pocket and orders the bartender to bring another double martini. The bartender says, "Look, buddy, I'll bring ya' martinis all night long - but you gotta tell me why you look inside your shirt pocket before you order a refill."
The customer replies, "I'm peeking at a photo of my wife.
When she starts to look good, I know it's time to go home."

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Richard Brooke Roberts

Born 7 Dec 1910; died 4 Apr 1980 at age 69.American biophysicist who contributed most to the discovery of "delayed neutrons" - that uranium fission does not release all the neutrons it produces at one time, but some come off at measurably later times. Some are emitted seconds to minutes later. This is crucial in the operation of a fission reactor. In uranium-235 fission in a thermal reactor, the proportion of delayed neutrons is about 0.65 percent. If the reactivity stays below the proportion of delayed neutrons, the reactor can be controlled. The delayed neutrons modify the rate of fission sufficiently to give time for the insertion of control rods. Without the margin of safety provided by the delayed neutrons, nuclear reactors might not be practical at all.*
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