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Calculate the number 537

NUMBERMANIA: Calculate the number 537 using numbers [4, 7, 1, 6, 60, 472] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 15

The first user who solved this task is Nasrin 24 T.

#brainteasers #math #numbermania

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Blue baby operation

In 1944, the first “blue baby”operation was performed successfully at Johns Hopkins University by Dr. Alfred Blalock and pediatric cardiologist Helen B. Taussig. He devised the first subclavian-pulmonary artery anastomosis operation on the cyanotic (“blue-baby”) infant which had a hole in the wall between the heart's two major chambers (ventricles). The Blalock-Taussig shunt procedure joined an artery leaving the heart to an artery leading to the lungs, in an attempt to give the blood a second chance at oxygenation. Thousands of cyanotic children have been helped by the same operation until later surgeries repair the defect itself.«[Image: the Blalock-Taussig shunt shown after surgery on the heart.]

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