medium · GMAT Quant
An inventory audit specifies that positive integers x and y satisfy the constraint 3x + 7y = 100.
Which of the following statements must be true regarding x and y?
- x and y have the same parity.
- x and y have opposite parity.
- x must be an even integer.
- y must be an odd integer.
- x + y is an odd integer.
Sign up free to see the explanation and track your rank →
More GMAT Quant practice
- Including both endpoints, how many distinct integer price points are in this range?
- Which of the following expressions must result in a positive value?
- Which property of arithmetic justifies that first step?
- Which of the following must also be an even integer?
- Which of the following inequalities correctly represents this range?
- Which of the following includes the number 0?
- How many unique meal combinations can a customer create?
- What is the probability that the lightbulb is functional?