If y((3x-5)/2) =y and y#0, then x =…
May 9, 2015
GMAT OFFICIAL GUIDE PS Solution: Answer: A (Note: We can divide both sides by y because it’s given that y does not equal 0. Otherwise, we couldn’t divide both …
If 1 kilometer is approximately 0.6 mile, which of the following…
May 9, 2015
GMAT OFFICIAL GUIDE PS Solution: To solve, we must convert 2 miles to kilometers. We are given that 1 kilometer = 0.6 mile. Thus, we can convert 2 miles …
In the figure above, if PQRS is a parallelogram, then y – x
May 9, 2015
GMAT OFFICIAL GUIDE PS Solution: To solve we need to review some rules about parallelograms. In parallelograms there are two main rules about the relationships between the angles: 1) …
A glucose solution contains 15 grams of glucose per 100 cubic…
May 9, 2015
GMAT OFFICIAL GUIDE PS Solution: We are given that a glucose solution contains 15 grams of glucose per 100 cubic centimeters of solution. Since we are dealing with a …
In the equation above, k is a constant. If y = 17 when x = 2
May 9, 2015
GMAT OFFICIAL GUIDE PS Solution: We are given the equation y = kx + 3, where k is a constant. We are also given that y = 17 when …
The average (arithmetic mean) of 10, 30, and 50 is 5 more…
May 9, 2015
GMAT OFFICIAL GUIDE PS Solution: Let’s first determine the average of 10, 30, and 50, using the average formula. average = sum/quantity average = (10+30+50)/3 average = 90/3 average …
GMAT OFFICIAL GUIDE PS – √80 + √125 =
May 9, 2015
GMAT OFFICIAL GUIDE PS – √80 + √125 = Solution: To solve the problem we must simplify the radicals. Radicals should be simplified whenever possible. Since the square root …
How many integers n are there such that 1< 5n +5 < 25?
May 9, 2015
GMAT OFFICIAL GUIDE PS Solution: 1< 5n + 5 < 25 is a compound inequality. Compound inequalities often need to be manipulated, and we can use the rules of …