Search found 114 matches


Network of blood vessels and flight

Networks of blood vessels in bats’ wings serve only to disperse heat generated in flight. This heat is generated only because bats flap their wings. Thus paleontologists’ recent discovery that the winged dinosaur Sandactylus had similar networks of blood vessels in the skin of its wings provides...

by kobel51

Tue Mar 18, 2014 11:45 pm
Forum: Critical Reasoning
Topic: Network of blood vessels and flight
Replies: 2
Views: 1461

Poor production and a centralized economy

An overly centralized economy, not the changes in the climate, is responsible for the poor agricultural production in Country X since its new government came to power. Neighboring Country Y has experienced the same climatic conditions, but while agricultural production has been falling in Country X,...

by kobel51

Tue Mar 18, 2014 11:43 pm
Forum: Critical Reasoning
Topic: Poor production and a centralized economy
Replies: 2
Views: 1368

Strait of Gilbraltar

According strategic proximity to the Strait of Gibraltar, Morocco was also of interest to the French throughout the first half of the twentieth century because they assumed that if they did not hold it, their grip on Algeria was always insecure . (A) if they did not hold it, their grip on Algeria wa...

by kobel51

Tue Mar 18, 2014 11:40 pm
Forum: Sentence Correction
Topic: Strait of Gilbraltar
Replies: 1
Views: 838

Acme Bank services

By providing such services as mortgages, home improvement loans, automobile loans, financial advice, and staying within the metropolitan areas, Acme Bank has become one of the most profitable savings banks in the nation. (A) financial advice, and staying (B) financial advice, and by staying (C) and ...

by kobel51

Tue Mar 18, 2014 11:39 pm
Forum: Sentence Correction
Topic: Acme Bank services
Replies: 1
Views: 870

If 2x(5n) = t, what is t?

If 2x(5n) = t, what is the value of t?

1) x = n+3

2) 2x = 32

by kobel51

Tue Mar 18, 2014 8:55 am
Forum: Data Sufficiency
Topic: If 2x(5n) = t, what is t?
Replies: 2
Views: 1121

How many wheel rotations?

What is the number of 360-degree rotations that a bicycle wheel made while rolling 100 meters in a straight line without slipping?

1) The diameter of the bicycle wheel, including the tire, was 0.5 meter.

2) The wheel made twenty 360-degree rotations per minute.

by kobel51

Tue Mar 18, 2014 8:54 am
Forum: Data Sufficiency
Topic: How many wheel rotations?
Replies: 2
Views: 1068

Decrease hours to keep income the same

A part-time employee whose hourly wage was increased by 25 percent decided to reduce the number of hours worked per week so that the employee's total weekly income would remain unchanged. By what percent should the number of hours worked be reduced?

A) 12.5%

B) 20%

C) 25%

D) 50%

E) 75%

by kobel51

Tue Mar 18, 2014 8:53 am
Forum: Problem Solving
Topic: Decrease hours to keep income the same
Replies: 4
Views: 1202

Negative exponents

(1/3)^-3 * (1/4)^-2 * (1/16)^-1 =

A) (1/2)^-48

B) (1/2)^-11

C) (1/2)^-6

D) (1/8)^-11

E) (1/8)^-6

How to handle this quickly?

by kobel51

Tue Mar 18, 2014 8:49 am
Forum: Problem Solving
Topic: Negative exponents
Replies: 2
Views: 1423

Small-business and the minimum wage

Small-business groups are lobbying to defeat proposed federal legislation that would substantially raise the federal minimum wage. This opposition is surprising since the legislation they oppose would, for the first time, exempt all small businesses from paying any minimum wage. Which of the followi...

by kobel51

Sat Mar 15, 2014 10:54 am
Forum: Critical Reasoning
Topic: Small-business and the minimum wage
Replies: 1
Views: 1796

Banned imports

To protect certain fledgling industries, the government of Country Z banned imports of the types of products those industries were starting to make. As a direct result, the cost of those products to the buyers, several export-dependent industries in Z, went up, sharply limiting the ability of those ...

by kobel51

Sat Mar 15, 2014 10:52 am
Forum: Critical Reasoning
Topic: Banned imports
Replies: 1
Views: 1684

The plot of The Bostonians

The plot of The Bostonians centers on the rivalry between Olive Chancellor, an active feminist, with her charming and cynical cousin, Basil Ransom , when they find themselves drawn to the same radiant young woman whose talent for public speaking has won her an ardent following. (A) rivalry between O...

by kobel51

Sat Mar 15, 2014 10:49 am
Forum: Sentence Correction
Topic: The plot of The Bostonians
Replies: 2
Views: 1739

Dr Tonegawa Nobel Prize

Dr. Tonegawa won the Nobel Prize for discovering how the body can constantly change its genes to fashion a seeming unlimited number of antibodies, each specifically targeted at an invading microbe or foreign substance. (A) seeming unlimited number of antibodies, each specifically targeted at (B) see...

by kobel51

Sat Mar 15, 2014 10:47 am
Forum: Sentence Correction
Topic: Dr Tonegawa Nobel Prize
Replies: 2
Views: 1674

Effective kinds of publicity

Among the more effective kinds of publicity that publishers can get for a new book is to have excerpts of it published in a high-circulation magazine soon before the book is published. The benefits of such excerption include not only a sure increase in sales but also a fee paid by the magazine to th...

by kobel51

Sun Mar 09, 2014 7:27 pm
Forum: Critical Reasoning
Topic: Effective kinds of publicity
Replies: 1
Views: 1141

child care for low-income families

Low-income families are often unable to afford as much child care as they need. One government program would award low-income families a refund on the income taxes they pay of as much as $1,000 for each child under age four. This program would make it possible for all low-income families with childr...

by kobel51

Sun Mar 09, 2014 7:26 pm
Forum: Critical Reasoning
Topic: child care for low-income families
Replies: 1
Views: 1232

Barbara Wootton's elephant

The British sociologist and activist Barbara Wootton once noted as a humorous example of income maldistribution that the elephant that gave rides to children at the Whipsnade Zoo was earning annually exactly what she then earned as director of adult education for London. (A) that the elephant that g...

by kobel51

Sun Mar 09, 2014 7:25 pm
Forum: Sentence Correction
Topic: Barbara Wootton's elephant
Replies: 1
Views: 1087