In the xy-plane, the straight-line graphs of the three equations above…
May 16, 2016
GMAT OFFICIAL GUIDE DS Solution: We can begin by substituting p and r in for x and y, respectively, in the 3 given equations. 1) r = ap – …
Tag: data sufficiency
A certain list consists of 3 different numbers. Does the median…
May 16, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given that a certain list contains three different numbers. Let’s label these three numbers. a = smallest number b = middle number …
In planning for a trip, Joan estimated both the distance of the trip
May 16, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given that Joan accurately divided her estimated distance by her estimated average speed to obtain an estimate for the time, in hours, …
For any positive integer x, the 2-height of x is defined to be the…
May 16, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given that for any positive integer x, the 2-height of x is defined to be the greatest nonnegative integer n such that …
The figure above represents an L-shaped garden…
May 16, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given a diagram of an L-shaped garden. Let’s sketch that diagram below. We see that the L-shaped garden can be broken up …
A tank is filled with gasoline to a depth of exactly 2 feet…
May 16, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given that a tank, resting on its side, has gasoline filled to a depth of 2 feet. We are also given that …
On a certain nonstop trip, Marta averaged x miles per hour for…
May 16, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given that Marta averaged x miles per hour for 2 hours and y miles per hour for the remaining 3 hours. Since …
A telephone station has x processors, each of which can…
May 16, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given that a station has x processors, each of which can process a maximum of y calls at a time. Thus, the …