Find number abc
[7537] Find number abc - If a1cab - bb195 = c292 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 5
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Find number abc

If a1cab - bb195 = c292 find number abc. Multiple solutions may exist.
Correct answers: 5
#brainteasers #math
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Two Irishmen robbed a bank

Two Irishmen robbed a bank and messed it up, managing to escape with two sacks that they found on the floor. And they take one sack each.
After awhile they meet again and one asks the other, "What did you find in your sack?"
"Ten million pounds!"
"Wow... that's a lot! What did you do with the cash?"
"I bought a house. How about your sack?"

"Bah... it was full of bills."

"And what did you do with them?"

"Eh, well... little by little, I'm paying them off..."
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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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