That is a great reply fitzgerald23 but I am not convinced...If I can consistently score between 20-30 (which is actually a huge margin) in preps...I see no reason for a 17...and how do you explain the 25 odd SC's that I got... And what do you mean here "It does not seem to be anywhere near as f...

I doubt if this idea will even take off but here is my vote. As said earlier I got a pathethic 17. Even in state of sleep I have got scores between 25-30, so this is surely not my score. I have tried MGMAT, GMAT prep, Knewton, Kaplan. Infact recently I had become more confident on Verbal than on Qua...

Does computing median require set to be ordered?

Suppose we have a set {8, -1, 3, 6, 2 } do we need to order the set before computing the median, this may be silly but I ask this specifically because here http://www.beatthegmat.com/is-the-range ... 57095.html I learnt that range does not require a set be ordered.

Quadrant of the coordinate plane(Knewton Prep)

In which quadrant of the coordinate plane does point (w, z) lie, if wz ≠ 0?

1.(z, w) is in quadrant III.
2.(-w, z) is in quadrant IV

Thanks, OA: D

Prime numbers (Knewton Prep)

For any integer p, *p is equal to the product of all the integers between 1 and p, inclusive. How many prime numbers are there between *7 + 3 and *7 + 7, inclusive?


(A) None
(B) One
(C) Two
(D) Three
(E) Four

Valve Problem (Knewton Prep)

An adjustable intake valve fills the first 12 gallons of a 24-gallon tank at a rate of 28 gallons per minute. What average rate, in gallons per minute, must the valve allow while filling the remaining 12 gallons in order to have an average rate of 40 gallons per minute for filling the whole tank? (A...

Yes this from Knewton. I am not happy with B and still consider that the question is wrongly framed, because B talks of only a part of the given premise. A on the other hand seems to cover more of the information given in the premise.