Tag: Official Guide for GMAT Review 2017

GMAT OFFICIAL GUIDE PS Solution: When looking at the diagram, we want to start with the quadrilateral that contains angles z and y. We must remember that any quadrilateral …

GMAT OFFICIAL GUIDE PS Solution: Since we know that m^-1 = -1/3 and m^-2 = (m^-1)^2, then m^-2 = (-1/3)^2 = 1/9. Answer: D

GMAT OFFICIAL GUIDE PS Solution: We are given that the operation ⊙ is defined by x⊙y = √(xy) for all positive numbers. We are next given that (5⊙45)⊙60. Following …

GMAT OFFICIAL GUIDE PS Solution: We are given that operation Ө is defined by aӨb = (a-b)/(a+b). We are also given that aӨc = 0; thus, according to the …

GMAT OFFICIAL GUIDE PS – Solution: Although we could plug in a real value for d, the problem can be just as easily solved by setting up equations. So …

GMAT OFFICIAL GUIDE PS Solution: Let’s isolate x in both inequalities, starting with x + 6 > 10. x + 6 > 10 x > 4 Next we isolate …

GMAT OFFICIAL GUIDE PS Solution: Let’s first set up our ratio using variable multipliers. length : width = 3.3x : 2x We are given that the width is 8 …

GMAT OFFICIAL GUIDE PS Solution: We are given that a = -0.3; what we must keep in mind in this problem is that we are really being tested on …