Maximum Number of Arithmetic Problems Solved with Abacus by a Minor (Male) in 30 Minutes
The Maximum Number of Arithmetic Problems Solved with Abacus by a Minor (Male) in 30 Minutes counted to 612 perfect answers out of 645 arithmetic sums. It was accomplished by U.Sashanth (4 Years), ZeMAC Global Edu Private Limited and MP Academy, Salem District, Tamil Nadu, India on April 11, 2015.
