## GMAT Math Solutions: Data Sufficiency

February 1, 2014 *in Example Problems, Quantitative *

Data sufficiency problems can be tricky, even for students who have studied a high level of mathematics. The problems often involve simple concepts such as fractions, percentages, multiples, and prime numbers. There are never questions involving trigonometry or calculus, and even advanced algebra concepts aren’t often present. Instead, data sufficiency questions are often complex and challenging questions based on simple concepts. This question is a great example. It is testing your knowledge of odd and […]