What was the range of the selling prices of the 30 wallets…
May 13, 2016
GMAT OFFICIAL GUIDE DS Solution: We need to determine the range of selling prices of 30 wallets. Recall that the range of a set of numbers is the difference …
Tag: GMAT Solutions
If sequence S has 120 terms, what is the 105th term of S
May 13, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given that sequence S has 120 terms and we must determine the 105th term of S. Statement One Alone: The first term …
What is the value of 10 percent of…
May 13, 2016
GMAT OFFICIAL GUIDE DS Solution: We are asked to determine the value of 10 percent of y. Putting “10 percent of y” into a mathematical expression we have: 0.1y= …
Each of the marbles in a jar is either red or white or blue. If one…
May 13, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given that there are red, white, and blue marbles in a jar. Thus, we can create the following probability equation: P(red) + …
Jackie has two solutions that are 2 percent sulfuric acid…
May 13, 2016
GMAT OFFICIAL GUIDE PS – Solution: We can begin by defining two variables: x = the number of liters of 2 percent solution y = the number of liters …
Alex deposited x dollars into a new account that earned 8
May 13, 2016
GMAT OFFICIAL GUIDE PS Solution: We start by determining the new value of the x dollars Alex deposited into his account that earned 8 percent annual interest. At the …
Working simultaneously and independently at an identical constant rate, 4 machines…
May 13, 2016
GMAT OFFICIAL GUIDE PS Solution: We are given that 4 machines can produce a total of x units in 6 days. Since rate = work/time, the rate of the …
If it is assumed that 60 percent of those who receive a questionnaire…
May 13, 2016
GMAT OFFICIAL GUIDE PS Solution: We are given that 60% of those who receive a questionnaire will respond. We must determine how many questionnaires need to be mailed to …