Every member of a certain club volunteers to contribute…
May 5, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given that every member of a club contributes evenly to a $60 gift certificate. We must determine the number of members in …
Tag: Official Guide for GMAT Review 13th Edition
Is 5^k less than 1,000? (1) 5^(k+1) > 3,000 (2) 5^(k-1) = 5^k – 500
May 5, 2016
GMAT OFFICIAL GUIDE DS Solution: We need to determine whether 5^k is less than 1,000. Statement One Alone: 5^(k+1) > 3,000 We can simplify the inequality 5^(k+1) > 3,000. …
The inflation index for the year 1989 relative to the year…
May 5, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given that the inflation for the year 1989 relative to the year 1970 was 3.56, which means the price of an item …
If n is a positive integer, is the value of b – a at least twice the…
May 5, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given that n is a positive integer, and we must determine whether the value of b – a is at least twice …
If x is an integer, which of the following must be an even integer?
May 5, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given that x is an integer, and we must determine whether x|x| < 2^x. Statement One Alone: x< 0 Since we are …
If Carmen had 12 more tapes, she would have twice as many tapes as…
May 5, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given that if Carmen had 12 more tapes she would have twice as many tapes as Rafael. If we let C = …
If n is a positive integer and k = 5.1*10^n, what is the value of k?
May 5, 2016
GMAT Guideline We are given that k = 5.1(10^n) and must determine the value of k. In further analyzing the equation with k, we see that k is equal …
In the expression above, if xn#0, what is the value of S?
May 5, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given the following expression: S = (2/n)/(1/x + 2/(3x)), and we must determine a value for S. Before moving to the statements, …