If a and b are integers, is a + b + 3 an odd integer
December 18, 2017
GMAT OFFICIAL GUIDE DS Solution: We need to determine whether a + b + 3 is odd, or in other words, whether a + b is even. Statement One …
If x and y are positive integers, is xy…
December 18, 2017
GMAT OFFICIAL GUIDE DS Solution: We need to determine whether the product of x and y is even. Statement One Alone: x^2 + y^2 − 1 is divisible by …
Every object in a box is either a sphere or a cube…
December 18, 2017
GMAT OFFICIAL GUIDE DS Solution: We are given that we have red or green spheres or cubes in a box. We need to determine the total number of objects. …
If x and y are positive numbers is x+1/y+1…
December 18, 2017
GMAT OFFICIAL GUIDE DS Solution: We are given that x and y are positive numbers and need to determine whether (x + 1)/(y + 1) > x/y. Simplifying the …
A certain plumber charges $92 for each job completed in 4 hours…
December 18, 2017
GMAT OFFICIAL GUIDE DS Solution: We are given that a certain plumber charges $92 for each job completed in 4 hours or less and $23 per hour for each …
Of a group of 50 households, how many have at least one cat…
December 18, 2017
GMAT OFFICIAL GUIDE DS Solution: We have a group of 50 households and need to determine how many of those households have at least one cat or at least …
In a certain group of 50 people, how many are doctors who…
December 18, 2017
GMAT OFFICIAL GUIDE DS Solution: We have a group of 50 people and need to determine how many of those people are doctors with a law degree. We can …
The people in a line waiting to buy tickets to a show…
December 18, 2017
GMAT OFFICIAL GUIDE DS Solution: We need to determine the number of people in the line who are behind Beth, given that Beth is standing behind Adam and the …