HI Sukrant, I agree with OA. Here is the reason, in the context of this question & answer choices; clearly the conclusion of the argument is the second bold faced clause and the first bold faced clause offering its support for the conclusion. if you observe carefully, answer choices B,C, E indic...

First of all, if 2 lines are perpendicular then the product of their slopes is -1. Since both lines cross thru centre (0,0); Slope 1 = (1 - 0) / (-root3 - 0) = - 1 / root3 Slope 2 = t - 0 / s - 0 = t/s product of slopes = t/s * -1/root3 = -1 ==> t = root3 s Now lets use the triangles; r^2 = 1^2 + (-...

Sol1 : y = (x+a)(x+b) ==> y = x^2 + (a+b)x + ab ==> to get x intercept assume y = 0 x^2 + (a+b)x + ab = 0 I) a+b = -1, not sure about ab - Insuff II) Substitute x=0 ==> ab = -6, not sure about a+b - Insuff I & II) Suff Answer C Sol 2: I) QPR = 30; can't determine PRS - Insuff II) PQR + PRQ = 150...

We are supposed to have 20 lights off (the ones that aren't on), but 40% of them are actually on. So, we have 8 lights that should be off that are on instead. Eight is 10% of 80, so the answer is 10% (D). Hi Jim, could you elaborate this a bit.. How could you take 40% of 20 lights which are OFF , a...

Another alternative is to simply even further; k^2 - t^2 is odd. That means either k^2 or t^2 is odd and the other is even; If k^2 is odd & t^2 is even ==> k is odd & t is even If k^2 is even & t^2 is odd ==> k is even & t is odd We assume k is odd & t is even; I) k + t + 2 ==> o...

great Ian... good way to rely on the fundamentals than relying on the formulas... t

cheers

hi egybs, your explanation is correct but there are some typos.. Here is rewritten explanation; Assume total cars = 60 Rented = (2/3) * 60 = 40; Not Rented = 20 Cars with CDs = (3/4) * 60 = 45, Cars Rented with CDs = (3/5) * 45 = 27 Cars Not Rented with CDs = 45 - 27 = 18 % of Cars with CDs Not Rent...

netigen wrote:Note 1: You have already taken the approximations which are lower than the actual numbers.

Now assume that the avg is 40.