GMAT OFFICIAL GUIDE PS Solution: Since actually dividing 1/(2^3*5^7) would be time consuming, we want to manipulate d so that we are working with a cleaner denominator. The easiest …
GMAT OFFICIAL GUIDE PS Solution: We need to produce an equation from the information given in the problem stem. We are first given that x is multiplied by 2 …
GMAT OFFICIAL GUIDE PS Solution: To solve we can setup a proportion. The proportion will read: A time of 8 hours is to filling up 3/5 of the pool …
GMAT OFFICIAL GUIDE PS Solution: We first want to create variables for Jack’s age today and Bill’s age today. J = Jack’s age today B = Bill’s age today …
GMAT OFFICIAL GUIDE PS Solution: To solve this problem it’s easier to refer to a diagram of what is provided in the problem stem. In creating the diagram we …
GMAT OFFICIAL GUIDE PS Solution: In solving this problem we first must recognize that the flower bed is the right triangle with sides of y yards, x yards, and …
GMAT OFFICIAL GUIDE PS Solution: This is a units digit pattern question. The first thing to recognize is that in units digit pattern questions we only care about the …
GMAT OFFICIAL GUIDE PS Solution: This problem can be solved by using a Rate-Time-Distance table. We are given that Francine traveled x percent of the distance at a rate …
