Ron, I have a query too How often should i review the notes and the problems which i have solved? I went through your tips mentioned in the below thread (http://www.beatthegmat.com/550-to-720-in-5-weeks-experts-pls-help-t72949.html) Say- If i have a 3 month target for GMAT preparation, should i revi...

Hi Mitch..

Could you please give us a tips on how to pick the right numbers..

I picked
x=100
t=10
s=5

got a wrong answer...

Why cant i solve by following method

let time taken by Bre be T, and Alex be T+1..

I get the solution if i take T-1 for Bre and T for Alex..can some one guide me when to pick pair like (T and T+1) and (T and T-1)

Hi mitch..

Could you please give us a tip, on which problems types we need to set up critical points..
Because i start do so in all the inequality problems but later i realize the i should not have used that method..

appreciate your help

Hi Ian.. I applied PT here as u advised but it seems im not getting the right answer Let x=9, y=16, x+y=25 then √x=3 √y=4 √x+y=5 1/√(x + y)=1/5 I. [√(X+Y)]/2x = 5/18 II. [(√X) + (√Y)]/(x + y) = 7/25 III. [(√X) – (√Y)]/(x + y)= -ve so option 1 and 2 is greater than 1/5.. please co...

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Hi..Could you please advise, while finding critical points, is it necessary to check range between -1<x<0 and 0<x<1 (Proper and improper fractions, both + and - ve)In all problems? As i missed here, concluding the range only 1<x ***********************************************************************...

Excellent. This is extremely helpful. Can you explain the logic in the formula explanation why you have to put a coefficient of 2 in front of the 3 (number of students in all groups??? The students in all 3 groups have been counted 3 times: once as part of group 1, once as part of group 2 and once ...