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 …
The sum 7/8 + 1/9…
May 8, 2015
GMAT OFFICIAL GUIDE PS Solution: Let’s first determine the sum of 7/8 and 1/9. 7/8 + 1/9 Getting a common denominator of 72 gives us: 63/72 + 8/72 =71/72 …
If n is an integer, which of the following…
May 8, 2015
GMAT OFFICIAL GUIDE PS Solution: To solve this question, we need to consider a few odd/even rules. 1) (even + even) or (odd + odd) = even 2) even …
In the figure above, the point on segment PQ…
May 8, 2015
GMAT OFFICIAL GUIDE PS Solution: This is an interesting problem because, although we usually prefer an algebraic approach to solving GMAT questions, the quickest way to solve this problem …