-> If for two numbers x+y=k(=constant), then their PRODUCT is MAXIMUM if x=y(=k/2). The maximum product is then (k^2)/4
-> If for two numbers x*y=k(=constant), then their SUM is MINIMUM if x=y(=root(k)). The minimum sum is then 2*root(k) .
For more study materials/ Vedic Maths tricks/ Practice tests : www.tutioncentral.com
Also visit: http://jackofinterviews.blogspot.com/
Facebook page: https://www.facebook.com/pages/TutionCentral
CAIIB/JAIIB Pages- https://www.facebook.com/pages/Tutioncentral-CAIIB-JAIIB
https://www.facebook.com/pages/IBPS-Banking-Tutioncentralcom