Percent is one of the major concepts on GRE and GMAT as it involves and interfaces with most of the other topics.
Percent is expressed as the number out of 100.
As promised in the last post, here we are going to go deeper into number properties tested very frequently on the GMAT. We first begin with prime numbers.
An analysis of the quant section of GMAT brings out two striking points.
The 80/20 rule says that 80% of your output comes from 20% of the effort.