Finally its over680(47,36)-->640(48,29)-->690(49,34)

I am relieved although not very happy as i wanted to cross the 700 barrier, but thats ok.. my verbal skills are not that good i guess.. should have read some books/novels early on :). Timming is the main thing if you are weak in either Quant or Verbal. For me I panicked in my first attempt in Quant ...

C

product of 2 numbers is = lcm * gcf

ans is C 100/21

Let revenue last month be r

Given 220*p=1.1r (220 tckts at p price gives 110% )

r = 220p/1.1 = 200p ---- last months revenue

Now if price is incresed by 5%

200(1.05p) = 210p -- this month

Difference is 10p

So (10p/210p) *100 = 100/21

Whats the OA ?

Ans... D
1)
angle bao = boa = x
angle obc = ocb = y

Now cod is 60, equal to sum of opposite angles oab and oca
x+y = 60

similarly obc = bao + boa
y = 2x

solve these x = 20.
2) is easy..

Gmat Prep - please explain Stats

1) x cube (1 - x sq) < 0 So (x cube) <0 And (1 - x sq) >0 x < 0 -1<x<1 Taking together -1<x<0 ----------------------------1 OR So (x cube) > 0 .... and (1 - x sq) < 0 x > 0 -1>x>1 Taking together x>1--------------------------------2 For 1 x can be -ve or +ve 2) (x sq -1 ) < 0 -1<x<1 ---------------...

1. ) D x-y >10 now if x=8 8-y> 10 ie y < -2 8+(-2) <8>10 ie x > -10 -10 + (-20) < -10 -(-20) now if you make x as -5, 0, 5, 10... same result 2.) E - Not very sure qc pc + qd pd = 6 qc,qd - quantity of c and d pc,pd - quantity of c and d 3pc - 2pd = .10 ------------ 1 (pc +pd )/2 = .25 pc + pd = .7 ...

Its D.. as it is given that a/b is even means it cannot be 10/2 as 5 is odd... so a can be 8 or 12.
Then (a+2)/2 is always odd.