Search found 6 matches
You can frame the question as x = n•y ? where n is some integer. (1) $$^{y^2+y}$$ is NOT a factor of x. Rephrase this as y(y+1) is NOT a factor of x. Would this necessarily mean that y is Not a factor of x? Try numbers to see. (2) This can be rephrased as x(x^2 + 1) is NOT a multiple of y. This is...
- by Gmatbuddy
Mon Jul 22, 2019 1:42 am- Forum: GMAT Math
- Topic: If x and y are positive integers, is x a multiple of y? (1)
- Replies: 1
- Views: 4205
First consider statement (1) . It can be true even if a and b are of opposite signs. For example: a = 2 and b = -2 gives a^4 = b^4 a = 2 and b = 2. gives a^4 = b^4 You cannot be sure whether or not a and b have equal signs because raising to an even power will always be positive. Hence (1) is not s...
- by Gmatbuddy
Tue Jul 26, 2016 11:19 pm- Forum: Data Sufficiency
- Topic: For real numbers a and b, is it true that a = b?
- Replies: 4
- Views: 2668
- by Gmatbuddy
Sat Jul 23, 2016 2:56 am- Forum: Data Sufficiency
- Topic: DS
- Replies: 4
- Views: 2466
Fill in the gap type questions can be thought of as "Must be true" questions. This means that the correct answer choice must follow logically from the statement or "fit" the flow of the argument. If A had been " Lower the minimum qualifications an employee must have..."...
- by Gmatbuddy
Fri Jul 22, 2016 11:05 am- Forum: Critical Reasoning
- Topic: GMAT PREP CR... why is A wrong?
- Replies: 3
- Views: 3213
The two important things to recognize are that:
1. The travel times will be equal when they meet.
2. A will have traveled 4.5 laps and B will therefore have traveled 3.5 laps because that is the first time they have met.
cheers.
- by Gmatbuddy
Tue Jul 19, 2016 5:03 am- Forum: Problem Solving
- Topic: Speed,Time,Distance; Difficulty: Hard; Circular Tracks
- Replies: 3
- Views: 2932
Derive as much information as you can out of the given data, and determine the value of n that will satisfy all the restraints.
- by Gmatbuddy
Fri Jul 01, 2016 2:19 am- Forum: Problem Solving
- Topic: OG2017- Mark and Ann together were allocated n boxes of cook
- Replies: 3
- Views: 2634