Find number abc
If c7a57 + ac7b2 = 812ab find number abc. Multiple solutions may exist.Correct answers: 25
The first user who solved this task is Nasrin 24 T.
#brainteasers #math
Heart surgeryIn 1896, the first successful surgery on heart muscle was performed on 10 Sep 1896, by Ludwig Rehn in Frankfurt am Main, Germany, who sutured a myocardial laceration - a 1.5-cm wound of the right ventricle - of a 22-yr-old man stabbed in a drunken brawl. Previously, suturing of the pericardium, a fluid sac surrounding the heart - but not a part of the heart proper - was successfully executed by Americans Henry C. Dalton on 6 Sep 1891 and Daniel Hale Williams on 9 Jul 1893. These operations took place at a time when the prevailing belief was of the inviolability of the heart. Rehn's achievement is regarded as a landmark for the beginning of cardiac surgery.« |