GRE Math : Exponential Ratios
Study concepts, example questions & explanations for GRE Math
All GRE Math Resources
Example Questions
Example Question #1 :Exponential Ratios
Quantitative Comparison
Quantity A:
Quantity B:
The two quantities are equal.
The relationship cannot be determined from the information given.
Quantity B is greater.
Quantity A is greater.
Quantity B is greater.
In Quantity A, we add the exponents because the operation is multiplication, so 45* 4–3= 45+(–3)= 42. In Quantity B, we subtract the exponents because the operation is division, so 45/ 4–3= 45–(–3)= 48. We don't have to finish multiplying out the exponents to see that Quantity B is greater.
Example Question #2 :Exponential Ratios
If
This question is asking you for the ratio of m to n. To figure it out, the easiest way is to figure out when 4 to an exponent equals 8 to an exponent. The easiest way to do that is to list the first few results of 4 to an exponent and 8 to an exponent and check to see if any match up, before resorting to more drastic means of finding a formula.
And, would you look at that.
All GRE Math Resources
