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 …
Car X averages 25.0 miles per gallon of gasoline and Car Y…
May 8, 2015
GMAT OFFICIAL GUIDE PS Solution: To solve this problem we will need to use the formula: rate x gallons = distance, which means: gallons = distance/rate We need to …
1 – (1/2 – 2/3) =…
May 8, 2015
GMAT OFFICIAL GUIDE PS Solution: We are given the expression 1 – (1/2 – 2/3), and we need to determine the value. We start by getting a common denominator …
If x = 1- 3t and y = 2t – 1, then for what value of t does x…
May 8, 2015
GMAT OFFICIAL GUIDE PS Solution: We are given x = 1 – 3t and y = 2t – 1, and we need to determine the value for t when …