If 1.5/(0.2+x)=5, then x=…
May 8, 2015
GMAT OFFICIAL GUIDE PS Solution: We are given the following equation: 1.5/(0.2+x) = 5 We begin by multiplying both sides of the equation by (0.2 + x), and we …
1/(0.75 – 1) =
May 8, 2015
GMAT OFFICIAL GUIDE PS Solution: We start by subtracting 1 from 0.75 in the denominator of 1/(0.75 – 1). This yields: 1/-0.25 Next we convert 0.25 to a fraction, …
GMAT OFFICIAL GUIDE PS – What is the lowest positive integer that is divisible by…
May 8, 2015
What is the lowest positive integer that is divisible by… Solution: We need to determine the smallest number that is divisible by the following: 1, 2, 3, 4, 5, …
John has 10 pairs of matched socks. If he loses 7 individual…
May 8, 2015
GMAT OFFICIAL GUIDE PS Solution: Let’s label each pair of socks with letters. AA = pair 1 BB = pair 2 CC = pair 3 DD = pair 4 …
Which of the following equations is NOT equivalent to…
May 8, 2015
GMAT OFFICIAL GUIDE PS Solution: To solve this question, we start by FOILing the right hand side of the given equation. 10y^2 = (x+2)(x-2) 10y^2 = x^2 – 4 …
If O is the center of the circle above, what fraction…
May 8, 2015
GMAT OFFICIAL GUIDE PS Solution: In solving this problem there are three angle rules that we must consider. 1) A circle measures a total of 360 degrees. 2) A …
Root of (16*20+8*32)=…
May 8, 2015
GMAT OFFICIAL GUIDE PS Solution: We must first simplify the expression in the square root **before **actually taking the square root. In other words, we have to get the …
How many minutes does it take John to type y words if he…
May 8, 2015
GMAT OFFICIAL GUIDE PS Solution: This problem is testing us on our knowledge of variables in a “work” question. Ultimately, we are solving for time. Since rate x time …