Calculate the number 724
[7782] Calculate the number 724 - NUMBERMANIA: Calculate the number 724 using numbers [5, 7, 9, 4, 32, 586] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 1
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Calculate the number 724

NUMBERMANIA: Calculate the number 724 using numbers [5, 7, 9, 4, 32, 586] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
#brainteasers #math #numbermania
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Three doctors

Three doctors are waiting in line to get into the Pearly Gates. St. Peter walks out and asks the first one, "What have you done to enter Heaven?"

"I am a pediatrician and have brought thousands of the Lord's babies into the world."

"Good enough to enter the gates," replied St. Peter and in he goes. The same question is asked of the second doctor.

"I am a general practioner and go to Third World countries three times a year to cure the poor." St. Peter is impressed and allows him through the gates. The third doctor steps up in line and knowing the question, blurts out, "I am a director of an HMO."

St. Peter meditates on this for a while and then says, "Fine, you can enter Heaven...but only for 2 days."

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Photographic patent

In 1840, the first U.S. photographic patent was issued to Alexander S. Wolcott of New York City (No. 1,582). His "method of taking a likeness by means of a concave reflector and plates so prepared that luminous or other rays will act thereon" produced photographs 1.75 x 2.5 inches in size. They were not reversed as were daguerrotype which used refracting lenses.
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