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 …
Is the area of the triangular region above less than 20
December 18, 2017
GMAT OFFICIAL GUIDE DS Solution: We need to determine whether the area of the triangular region is less than 20. Statement One Alone: x^2 + y^2 ≠ z^2 Because …
If a is a 3-digit integer and b is a 3-digit integer…
December 18, 2017
GMAT OFFICIAL GUIDE DS Solution: We are given that a is a 3-digit integer and b is a 3-digit integer and need to determine whether the product of a …
A certain mixture of paint requires blue, yellow, and red…
December 18, 2017
GMAT OFFICIAL GUIDE DS Solution: We are given the ratio: blue : yellow : red = 2x : 3x : x We need to determine if there is enough …
Of the 150 houses in a certain development, 60 percent have…
December 18, 2017
GMAT OFFICIAL GUIDE PS Solution: We can create the following equation: Total houses = number with air conditioning + number with sunporch + number with pool – number with …
The figure shown above consists of a shaded 9-sided…
December 18, 2017
GMAT OFFICIAL GUIDE PS The figure shown above consists of a shaded 9-sided polygon and 9 unshaded isosceles triangles… Solution: Since we have a 9-sided polygon (also known as …