If n is an integer, is (0.1)^n greater than (10)^n…
May 16, 2016
GMAT OFFICIAL GUIDE DS Solution: We must determine whether (0.1)^n > (10)^n. We can rephrase the question as: Is (1/10)^n > (10)^n ? This can be true only if …
Tag: Official Guide for GMAT Review 2016
By what percent was the price of a certain television…
May 16, 2016
GMAT OFFICIAL GUIDE DS Solution: We must determine by what percent the price of a television set was discounted. Statement One Alone: The price of the television set before …
A certain truck uses 1/12+kv^2 gallons of fuel per mile…
May 16, 2016
GMAT OFFICIAL GUIDE DS Solution: We must determine the value of v when 1/12 + kv^2 = 5/12. We see that if we know the value of k, or …
GMAT OFFICIAL GUIDE DS – If x and y are positive integers, what is…
May 16, 2016
If x and y are positive integers, what is the value of… Solution: We must determine the value of √x + √y. Statement One Alone: x + y = …
If a and b are positive integers, is a/b < 9/11
May 16, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given that a and b are positive integers and we must determine: Is a/b < 9/11? or Is a/b <0.818181…? Statement One …
Do at least 60 percent of the students in Pat’s class walk to…
May 13, 2016
GMAT OFFICIAL GUIDE DS Solution: We need to determine whether at least 60 percent of the students in Pat’s class walk to school. Statement One Alone: At least 60 …
Lines k and m are parallel to each other…
May 13, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given that lines k and m are parallel to each other, and when two lines are parallel they have the same slope. …
Square ABCD is inscribed in circle O. What is the area of…
May 13, 2016
GMAT OFFICIAL GUIDE DS Solution: Let’s start by sketching square ABCD inscribed in circle O. We must also remember that the diagonal of the square is equal to the …