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Outsourcing is the practice of obtaining from an independent supplier a product or service that a company has previously provided for itself. Vernon, Inc., a small manufacturing company that has in recent years experienced a decline in its profits, plans to boost its profits by outsourcing those pa...

by Ozlemg

Sat Aug 27, 2011 2:51 pm
Forum: Critical Reasoning
Topic: PREP CR
Replies: 6
Views: 2575

From 1978 to 1988, beverage containers accounted for a steadily decreasing percentage of the total weight of household garbage in the United States. The increasingly widespread practice of recycling aluminum and glass was responsible for most of this decline. However, although aluminum recycling wa...

by Ozlemg

Sat Aug 27, 2011 2:45 pm
Forum: Critical Reasoning
Topic: PREP CR
Replies: 4
Views: 3364

Outsourcing is the practice of obtaining from an independent supplier a product or service that a company has previously provided for itself. Vernon, Inc., a small manufacturing company that has in recent years experienced a decline in its profits, plans to boost its profits by outsourcing those pa...

by Ozlemg

Sat Aug 27, 2011 2:26 pm
Forum: Critical Reasoning
Topic: PREP CR
Replies: 6
Views: 2575

GmatKiss wrote:Thanks for the question Ozlemg.
I picked D :)
@Gmatkiss

Well done!
You know how things work then

by Ozlemg

Mon Aug 22, 2011 6:11 am
Forum: Sentence Correction
Topic: Tricky Sc
Replies: 4
Views: 1165

Tricky Sc

Simply because they are genetically engineered does not make it any more likely for plants to become an invasive according to a decade-long study published in the journal Nature. A. because they are genetically engineered does not make it any more likely for plants to B. because it is genetically en...

by Ozlemg

Mon Aug 22, 2011 3:40 am
Forum: Sentence Correction
Topic: Tricky Sc
Replies: 4
Views: 1165

A marathon-Hard Q.

A and B ran, at their respective constant rates, a race of 480 m. In the first heat, A gives B a head start of 48 m and beats him by 1/10th of a minute. In the second heat, A gives B a head start of 144 m and is beaten by 1/30th of a minute. What is B’s speed in m/s? (A) 12 (B) 14 (C) 16 (D) 18 (E...

by Ozlemg

Sun Aug 21, 2011 5:13 am
Forum: Problem Solving
Topic: A marathon-Hard Q.
Replies: 4
Views: 1353

Leap year probability

How many randomly assembled people are needed to have a better than 50% probability that at least 1 of them was born in a leap year?

A. 1
B. 2
C. 3
D. 4
E. 5

OA : c
Source : gmatclub.forum

by Ozlemg

Sun Aug 21, 2011 4:52 am
Forum: Problem Solving
Topic: Leap year probability
Replies: 3
Views: 2261

Let's call rate of 1 Man = Rm and rate of 1 Woman = Rw We know, Rate * Time = Work Here, 3Rm (43) = 1 and 4Rw (43) = 1 So, Rm = 1 / (3 * 43) and Rw = 1 / (4 * 43) Combined rate of 7 Men = 7 / (3 * 43) Combined rate of 5 Women = 5 / ( 4 * 43) So combined rate of 7 men and 5 women, Rc = 7 / (3 * 43) ...

by Ozlemg

Sat Aug 20, 2011 1:11 pm
Forum: GMAT Math
Topic: Time & Work
Replies: 5
Views: 3302

mean and SD

If m, s are the average and standard deviation of integers a, b, c, and d, is s > 0?
1. m > a
2. a + b + c + d = 0

OA : A
source:4gmat.com

by Ozlemg

Sat Aug 20, 2011 1:04 pm
Forum: GMAT Math
Topic: mean and SD
Replies: 2
Views: 1459

cycling man-rate problm

A man cycling along the road noticed that every 12 minutes a bus overtakes him and every 4 minutes he meets an oncoming bus. If all buses and the cyclist move at a constant speed, what is the time interval between consecutive buses?

A.4
B.6
C.8
D.10
E.12

Source: gmatclub forum
OA :B

by Ozlemg

Sat Aug 20, 2011 6:04 am
Forum: Problem Solving
Topic: cycling man-rate problm
Replies: 1
Views: 1100

constant rates! tricky

Running at their respective constant rates, machine X takes 2 days longer to produce w widgets than machine Y. At these rates, if the two machines together produce 5/4 w widgets in 3 days, how many days would it take machine X alone to produce 2w widgets?

A. 4
B. 6
C. 8
D. 10
E. 12

OA : E

by Ozlemg

Sat Aug 20, 2011 4:49 am
Forum: Data Sufficiency
Topic: constant rates! tricky
Replies: 1
Views: 938

Let Rates for A and B be R1 and R2 Time Taken by A+Time Taken by B=0.5 1/R1+1/R2=30 Since, Time=Work/Rate.....In this case we consider work=1 The question asks us to find the value of R2 (1)A's constant rate is 25LTS/min meaning R1=25LTS/min Substituting this value in the above eqn we get, 1/25+1/R...

by Ozlemg

Sat Aug 20, 2011 4:24 am
Forum: Data Sufficiency
Topic: rate prb-tricky
Replies: 8
Views: 2112

rate prb-tricky

Working together at their constant rates , A and B can fill an empty tank to capacity in1/2 hr.what is the constant rate of pump B?
1) A's constant rate is 25LTS / min
2) the tanks capacity is 1200 lts.

Source: gmatclub.com
OA : C

by Ozlemg

Sat Aug 20, 2011 3:41 am
Forum: Data Sufficiency
Topic: rate prb-tricky
Replies: 8
Views: 2112

two machines.

Working alone at its own constant rate, a machine seals k cartons in 8 hours, and working alone at its own constant rate, a second machine seals k cartons in 4 hours. If the two machines, each working at its own constant rate and for the same period of time, together sealed a certain number of carto...

by Ozlemg

Sat Aug 20, 2011 2:59 am
Forum: Problem Solving
Topic: two machines.
Replies: 2
Views: 826

I have stumbled upon this problem: "adrian owns 48 neckties, each of which is either 100% silk or 100% polyester. Forty percent of his ties are striped, and 13 of his ties are silk. How many ties does adrian own that are polyester but are not striped?" Source: 30 Days to the GMAT CAT (Macmillan) Su...

by Ozlemg

Sat Aug 20, 2011 2:03 am
Forum: Problem Solving
Topic: Double overlap questions
Replies: 3
Views: 943