Find number abc
[3176] Find number abc - If 755a5 - a88c2 = 5667b find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 63 - The first user who solved this task is On On Lunarbasil
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Find number abc

If 755a5 - a88c2 = 5667b find number abc. Multiple solutions may exist.
Correct answers: 63
The first user who solved this task is On On Lunarbasil.
#brainteasers #math
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Dog in Heat

A little girl asked her Mom, "Mom, may I take the dog for a walk around the block?
Mom replies, "No, because she is in heat."
"What's that mean?" asked the child.
"Go ask your father. I think he's in the garage."
The little girl goes to the garage and says, "Dad, may I take Belle for a walk around the block? I asked Mom, but she said the dog was in heat, and to come to you."
Dad said, "Bring Belle over here."
He took a rag, soaked it with gasoline, and scrubbed the dog's backside with it and said, "Okay, you can go now, but keep Belle on the leash and only go one time around the block." The little girl left, and returned a few minutes later with no dog on the leash.
Surprised, Dad asked, "Where's Belle?"

The little girl said, "She ran out of gas about halfway down the block, so another dog is pushing her home."  

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Ultrasonic alarm

In 1953, the first U.S. patent for a burglar alarm operated by ultrasonic sound was issued to Samuel Bagno of New York City (No. 2,655,645) on a system for movement detection in a confined space by intruders or fire. It was manufactured as the Alertronic and first sold in Jun 1950. A sound source produced waves of 19,000 hertz, a frequency too high for normal human hearing. An intruder could be detected by the alarm by a difference in frequency of the reflected waves from the moving body (the Doppler effect). The device would then sound an alarm.
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