tpcool

IMO D In A, the problem is with the word *all*. The statement might not apply to everyone who demanded the chairman's resignation. D fits well.

A for me too

Imo C

Superb. Thanks rajatmeh:tup: I missed the multipliers 4,6 and 4 I got it now 4c1, 4c2, and 4c3

IMO B very tricky question Looks like we need to consider companies that didn't respond either positively or negatively. So, total = br plan + no br plan + no response A is inusfficient B says that br plan = 4 (no br plan + no response) sufficient

Imo D

IMO E Let t, b the no. of cars with auto transmission and auto breaks 1) insufficient says that b is a subset of t, but no. info on how many b or how many t 2) insufficient 1 + 2 insufficient 23 cars = (auto transmission, but no breaks) + (auto transmission with breaks)

One simple way to look at is that the sqrt symbol is RESERVED for positive roots only (as per GMAT) So, the resulting value must be positive. Since x is -ve, answer must be -x, to match with the positive result. Note that the value inside the sqrt could not have been negative, at least on GMAT. I don't think GMAT deals with imaginary numbers. Hence, there is no need to solve for the value that is inside square root. It is bound to be positive.

I am having hard time getting this question right. I am getting correct answer if I use the 1 - p(not required) approach, but I am not at all getting the correct answer if I use the actual approach. Appreciate if someone could solve the problem by finding out the probability of getting 1, 2 or 3 blue disks

Each of 4 bags contains 25 blue disks, 25 green disks, 25 orange disks, 25 yellow disks, and nothing else. If one disk is chosen at random from each of the four bags, what is the probability that the number of blue disks chosen will be no less than 1 and no greater than 3 ? A) 1/16 B) 41/128 C) 87/128 D) 225/256 E) 39/256

Yes, it is C "less lending" acts as a noun here, and it is parallel with "increased pressure" other choices are verb forms, which are not parallel with noun form

Imo B

Yes it is D Productivity increase is due to new machinery and not PRP

C for me too

Thanks for the clarification. I agree. I didn't double check thoroughly.

Clearly b

Thanks MBAchase. You are right. Thanks for clarifying it.

Deleted the content, as the given formula either doesn't work or cannot be interpreted in a simple way. For more info please visit: Primality test - Wikipedia, the free encyclopedia

hi curly213, just a small suggestion. Could you post answers separately, so that this will let the test takers to work on the problem and arrive at the answer naturally, instead of getting inclined to the answer. You could post all the answers as response to the same thread. There are many math gurus here ;-) I guess they would arrive at the correct answers, even without disclosing the answer. May be you can edit your post to take out all the answers. This will invite more people to look at your post and work on it. Just my thoughts.

Yep, thats correct. If it were 284, it would have been rounded to 280. Looking at all the answer choices, I inferred that OG used 284 as 290. Weird.

Thanks for the nice explanation. I think for III sqrt(2^n) will be an integer only for even values of n, not because it is a non-negative integer. Just to clarify. It is interesting to see that 2^n when divided by 3 leaves a remainder of 1, only for even values of n.

For the 10th question we can use Binomial Distribution formula If the probability of A happening is P, then the probability of A happening exactly K times, if repeated N times is given by NcK * p ^ k * (1 - p) ^ (n - k) In this case required = 1 - [0 heads + 1 head + 2 heads] = 1 - [5c0 * (1/2)^0 * (1/2)^5 + 5c1 * (1/2) ^ 1 * (1/2)^4 + 5c2 * (1/2) ^ 2 * (1/2)^3 ] = 1 - 16/32 = 1/2

Yes, B for me too

I guess E is not clear enough. "relations of nations" with what? organizations? sports clubs? B clearly identifies the relation is between one and nation and another nation

This is from Manhattan online CATs