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There is a major issue in the question: NONE of the answers has a finite set of solutions. Both explanations above correctly note that D implies that 1 < x < 3, but this is NOT a finite set of values! There are an infinite number of real numbers between 1 and 3. (Just to illustrate a few of them, w...
- by BShubh
Sat Aug 02, 2014 12:42 pm- Forum: Problem Solving
- Topic: Finite range of values of 'x' - please explain
- Replies: 7
- Views: 3482
Since U is mid point of seg ST and ST is 24, then UT will be 12.
and since SR is 20 and RT is 4...RU should be 8
Please see attached image. Hope this makes sense.[/img]
- by BShubh
Fri Aug 01, 2014 12:05 pm- Forum: Problem Solving
- Topic: gprep -4 ps
- Replies: 2
- Views: 1877
- by BShubh
Fri Aug 01, 2014 11:16 am- Forum: Problem Solving
- Topic: Finite range of values of 'x' - please explain
- Replies: 7
- Views: 3482
Finite range of values of 'x' - please explain
Which of the following inequalities has a finite range of values of 'x' satisfying it?
A. x^2 + 5x + 6 > 0
B. |x + 2| > 4
C. 9x - 7 < 3x + 14
D. x^2 - 4x + 3 < 0
E. 4x + 3 > 2x + 1
Answer: D
- by BShubh
Fri Aug 01, 2014 10:40 am- Forum: Problem Solving
- Topic: Finite range of values of 'x' - please explain
- Replies: 7
- Views: 3482
Let the Quantity of water for tank X be Qx and Quantity of water for tank Y be Qy. From the question we know: Qx=Qy+30 We need to find the time T. Statement 1: Rx=2Ry (rate of water drainage)since we need to know rate of at least one its insufficient. Statement 2: Ry=20 gallons/hour. Since we dont k...
- by BShubh
Fri Aug 01, 2014 9:57 am- Forum: Data Sufficiency
- Topic: Not sure Rate Problem
- Replies: 3
- Views: 2064