Fastest Time To Mentally Calculate 150 Random Division Items
Gandhinagar, Gujarat, India / May 6, 2013
Krupali Bhagyesh Patel mentally solved 150 random division items in two minutes, 4.10 seconds. She is a champion at an international math competition held in Australia.
- all items must be correctly solved
- must be solved mentally; may not use calculator or other device
- no assistance permitted during the attempt