July 19, 2015
Honestly, a rate is exactly the same thing as a ratio. You are simply comparing two numbers with GMAT rates. However, because GMAT rates typically are based on some unit of time the question types are a little different than the ratio question types.
Most often this is some output per unit of time:
miles per hour
meter per second
sales per year
However, rates can also be between other things:
sales per customer
window per building
customers to table
Ratios can be used to show this re...