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Greatest Number of Arithmetic Problems Solved using an Abacus by a Minor (Male) in 30 Minutes
U.Sashanth
11-Apr-2015
The Greatest Number of Arithmetic Problems Solved using an Abacus by a Minor (Male) in 30 Minutes counted to 612 out of 645 arithmetic sums, was completed by U.Sashanth, ZeMAC Global Edu Private Limited and MP Academy, Salem, Tamil Nadu, India on April 11, 2015.
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