Replace the question mark with a number
[4069] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 129 - The first user who solved this task is Thinh Ddh
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 129
The first user who solved this task is Thinh Ddh.
#brainteasers #math #riddles
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In 1952, the first surgical operation in the U.S. to expose the heart's mitral valve for a prolonged time was undertaken by Dr Forest Dewey Dodrill at the Harper Hospital, Detroit, Mich. The patient, a 41-year-old man, was provided with The Michigan Heart as a substitute for the lower left ventricle.
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