## Search found 21 matches

#### (y+3)(y-1) -(y-2)(y-1)=r(y-1)

###### Data Sufficiency

y could be any value to satisfy r = 5

by srisanj4

Sun Aug 09, 2009 5:02 pm
Forum: Data Sufficiency
Topic: (y+3)(y-1) -(y-2)(y-1)=r(y-1)
Replies: 3
Views: 1130

#### should I retake GMAT?

My personal opinion

I think 730 score is good. You should work better at your essays. There are many postings on writing better essays and inputs on what admission committees look at...

by srisanj4

Sun Aug 09, 2009 4:40 pm
Topic: should I retake GMAT?
Replies: 2
Views: 1253

#### Moving walkway

###### Problem Solving

Let S be average speed D be total distance = 300 ft T be total time take to travel 300 ft Bill's average speed S = D/T = 300/T Bill's effective speed relative to group of people = 3 ft/sec so, t1 = 120/3 = 40 sec However, note that in 40 sec, Bill and group of people together travelled 40x3 = 120 ft...

by srisanj4

Sun Aug 09, 2009 4:20 pm
Forum: Problem Solving
Topic: Moving walkway
Replies: 1
Views: 943

#### RECRUITS

###### Data Sufficiency

In this question we need to know the cut off score below which recruiters have to retest. We know it is bottom 16%. We also know average of the scores = 72 Stem 1) we know population (500). This will not help determine the distribution nor the lowest or highest score. We cannot determine which popul...

by srisanj4

Fri Aug 07, 2009 7:55 pm
Forum: Data Sufficiency
Topic: RECRUITS
Replies: 7
Views: 1073

#### Switching From Engineering To Finance?

###### The Application Process

I think you may start with banking industry... it may not be exactly finance job.. but something closer... I know some people who have extensive engg back ground, have joined well known banks.. .the job involved is to evaluate projects from a strategic view point and make a recommendation whether to...

by srisanj4

Fri Aug 07, 2009 7:30 pm
Forum: The Application Process
Topic: Switching From Engineering To Finance?
Replies: 2
Views: 4534

#### 2 Topics : Lines and Arithmetic Progressions

###### Problem Solving

LINES y=mx + b -i know what each variable stands for, what it means when 2 slopes are equal (parallel or coinciding lines), and what a reciprical slope means(Perpendicular lines) -i know the formula for the slope: m = (y2-y1)/(x2-x1) -positive slope lines pass through Q1 and q3; negative slope ones ...

by srisanj4

Fri Aug 07, 2009 7:26 pm
Forum: Problem Solving
Topic: 2 Topics : Lines and Arithmetic Progressions
Replies: 1
Views: 844

#### Vedic Maths - Speedy calculation techniques

###### Problem Solving

Hi,

Yes this is useful... thank you

by srisanj4

Wed Aug 05, 2009 9:29 pm
Forum: Problem Solving
Topic: Vedic Maths - Speedy calculation techniques
Replies: 2
Views: 3881

#### 2nd Gmac practice test Q

###### Problem Solving

there is already answer some where on this forum both areas are equal area of equilateral triangle = 1/2xBase xHeight Height = ROOT3/2 * T Base = T/2 area of T = 1/2*T/2*ROOT3/2 * T area of T = ROOT3/8 * T^2 area of S = S^2 It is given that both areas are equal T^2 * ROOT3/8 = S^2 Taking square root...

by srisanj4

Wed Aug 05, 2009 8:09 pm
Forum: Problem Solving
Topic: 2nd Gmac practice test Q
Replies: 1
Views: 860

#### PROBABILITY-

###### Problem Solving

Probability that it rains all 5 days = 1/2 * 1/2 * 1/2* 1/2 * 1/2

we need to find probability of raining exactly 3 days - in no particular order... which is 5 C 3 = 5*4*3/3*2*1 = 10

Probability of raining 3 days exact in 5 day period = 10 * 1/2^5 = 5/16

by srisanj4

Wed Aug 05, 2009 7:49 pm
Forum: Problem Solving
Topic: PROBABILITY-
Replies: 4
Views: 1032

#### Inequality

###### GMAT Math

Agreed. x>-1/17

by srisanj4

Mon Aug 03, 2009 11:29 pm
Forum: GMAT Math
Topic: Inequality
Replies: 5
Views: 1676

###### Problem Solving

Q2. I am not able to understand the story... The actual radius per scale provided will be 167x2=334 miles. The Surface area of the pond will be a huge number

pixRaidus^2 = 3.14x3.34x3.34x10^4

which is approx 310000 square miles

Not sure where the problem is...

by srisanj4

Mon Aug 03, 2009 11:24 pm
Forum: Problem Solving
Replies: 7
Views: 2308

###### Problem Solving

Q3.

All possible events - 5: (2,6 3, 5 4, 4 5, 3 6, 2)

Desired events - 2: (3, 5 5, 3)

Probability = desired events/possible events = 2/5

by srisanj4

Mon Aug 03, 2009 11:19 pm
Forum: Problem Solving
Replies: 7
Views: 2308

###### Problem Solving

Q1: Backsolve.

which is 3^3x = 90x3

Square both sides

(3^3x)^2 = 8100 x 9
which is 3^6x = 8100x9

Which is more than 8100. Hence the answer should be lower than 10.

Pick D - 10/3. If you solve you will get 3^6x = 8100. Hence answer is D

by srisanj4

Mon Aug 03, 2009 11:09 pm
Forum: Problem Solving
Replies: 7
Views: 2308

#### geometry - equal area

###### Problem Solving

I think you need to provide the diagram

by srisanj4

Mon Aug 03, 2009 10:58 pm
Forum: Problem Solving
Topic: geometry - equal area
Replies: 4
Views: 1656

#### geometry - equal area

###### Problem Solving

I think you need to provide the diagram

by srisanj4

Mon Aug 03, 2009 10:57 pm
Forum: Problem Solving
Topic: geometry - equal area
Replies: 4
Views: 1656