Tag: GMAT Solutions

GMAT OFFICIAL GUIDE PS Solution: This is a percent decrease problem. We will use the formula: percent change = (new – old)/old x 100 to calculate the final answer. …

GMAT OFFICIAL GUIDE PS Solution: We are given two pieces of information that can be translated into equations. However, before we make those equations let’s set up some variables …

GMAT OFFICIAL GUIDE PS Solution: The fractional ratio indicates that for every 3 Republicans, there are 5 Democrats, a ratio of 3 : 5. We first set up this …

GMAT OFFICIAL GUIDE PS Solution: We use the term “leading zeros” to describe the zeros between the decimal point and the first nonzero decimal digit. To complete this problem …

GMAT OFFICIAL GUIDE PS Solution: This problem is testing us on exponential growth. The easiest way to navigate this problem is to set up a growth chart. We are …

GMAT OFFICIAL GUIDE PS Solution: This is a two-part probability question. We should first notice that since our answer choices are in decimal form, we can use a real …

GMAT OFFICIAL GUIDE PS Solution: We are given that the ratio of students to teacher is 30 to 1. We can rewrite this using variable multipliers. students : teachers …

GMAT OFFICIAL GUIDE PS Solution: We are given that a square has a 20-inch diagonal, and we must solve for the perimeter of the square. This means we first …