Search found 42 matches


Snow Geese

Some species of Arctic birds are threatened by recent sharp increase in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species. Although snow geese are a popular quarry for hunters in the southern regions where they winter, the hunting season ends i...

by gibran

Thu Jun 19, 2008 10:28 am
Forum: Critical Reasoning
Topic: Snow Geese
Replies: 2
Views: 8516

r.s and w

If r, s, and w are positive numbers such that w = 60r + 80s and r + s = 1, is w <70> 0.5 (2) r > s A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. C. BOTH statements TOGETHER are suffici...

by gibran

Tue May 27, 2008 7:08 pm
Forum: Data Sufficiency
Topic: r.s and w
Replies: 1
Views: 1000

Students in a class

The diagram attached shows the number of students in a certain high school class who are boys and the number of students in the class who are studying biology. What is the total number of students in the class? (1) Of the boys in the class, 15 are studying biology. (2) The number of girls in the cla...

by gibran

Fri May 23, 2008 9:34 am
Forum: Data Sufficiency
Topic: Students in a class
Replies: 3
Views: 1375

moneyman wrote:Both statements clearly say that 0.20X=0.30Y which means that X is greater than Y. Plug values and confirm the answer.
How can we equate both the statements as 0.20X=0.30Y since there is nothing to this effect mentioned in the question stem. Please help to explain this step.

by gibran

Fri May 23, 2008 4:26 am
Forum: Data Sufficiency
Topic: members of Club X, Y
Replies: 2
Views: 220

odd integer

If a and b are positive integers such that a &#8211; b and a/b are both even integers, which of the following must be an odd integer?

A: a/2
B: b/2
C: (a+b)/2
D: (a+2)/2
E: (b+2)/2

OA is D. Please explain with steps.

by gibran

Thu May 22, 2008 9:05 am
Forum: Data Sufficiency
Topic: odd integer
Replies: 5
Views: 1354

odd integer

If a and b are positive integers such that a &#8211; b and <if>a/b are both even integers, which of the following must be an odd integer?

A: a/2
B: b/2
C: (a+b)/2
D: (a+2)/2
E: (b+2)/2

OA is D. Please explain with steps.

by gibran

Thu May 22, 2008 8:11 am
Forum: Data Sufficiency
Topic: odd integer
Replies: 2
Views: 1292

surface of a pond

On an aerial photograph, the surface of a pond appears as circular region of radius 7/16 inch. If a distance of 1 inch on the photograph corresponds to an actual distance of 2 miles, which of the following is the closest estimate of the actual surface area of the pond, in square miles? A. 1.3 B. 2.4...

by gibran

Wed May 21, 2008 7:26 pm
Forum: Problem Solving
Topic: surface of a pond
Replies: 3
Views: 1956

members of Club X, Y

Is the number of members of Club X greater than the number of members of Club Y ?
(1) Of the members of Club X, 20 percent are also members of Club Y.
(2) Of the members of Club Y, 30 percent are also members of Club X.

OA is C.

by gibran

Wed May 21, 2008 7:02 pm
Forum: Data Sufficiency
Topic: members of Club X, Y
Replies: 2
Views: 220

new style of aircraft

According to its proponents, a proposed new style of aircraft could, by skimming along the top of the atmosphere, fly between most points on Earth in under two hours. A. According to its proponents, a proposed new style of aircraft could, by skimming along the top of the atmosphere, fly between mos...

by gibran

Tue May 20, 2008 9:22 am
Forum: Sentence Correction
Topic: new style of aircraft
Replies: 8
Views: 3733

Wholesaler's profit

A wholesaler bought 1,200 radios for $18 each. The wholesaler sold 60 percent of the radios for $30 each and the rest for $15 each. What was the wholesaler&#8217;s average (arithmetic mean) profit per radio?
A. $2
B. $3
C. $4
D. $5
E. $6

OA is E.

by gibran

Tue May 20, 2008 5:49 am
Forum: Problem Solving
Topic: Wholesaler's profit
Replies: 7
Views: 6626

survey of 200 college grads

In a survey of 200 college graduates, 30 percent said they had received student loans during their college careers, and 40 percent said they had received scholarships. What percent of those surveyed said that they had received neither student loans nor scholarships during their college careers? (1) ...

by gibran

Tue May 20, 2008 5:43 am
Forum: Data Sufficiency
Topic: survey of 200 college grads
Replies: 13
Views: 6399

Storage costs for rakes

A certain business produced x rakes each month form November through February and shipped x/2 rakes at the beginning of each month from March through October. The business paid no storage costs for the rakes from November through February, but it paid storage costs of $0.10 per rake each month from ...

by gibran

Tue May 20, 2008 5:34 am
Forum: Problem Solving
Topic: Storage costs for rakes
Replies: 1
Views: 1159

thanks a lot .... damn good thinking :)

by gibran

Mon May 19, 2008 12:08 pm
Forum: Problem Solving
Topic: value of n
Replies: 2
Views: 1414

value of n

If the number 52,1n9, where n represents the tens digit, is a multiple of 3, then the value of n could be which of the following?
A. 6
B. 5
C. 3
D. 1
E. 0

OA is D. Somebody please help to explain the steps.

by gibran

Mon May 19, 2008 11:36 am
Forum: Problem Solving
Topic: value of n
Replies: 2
Views: 1414

simple problem ....

If the symbol ## represents either addition, subtraction, multiplication, or division, what is the value of 6 ## 2? (1) 10 ## 5 = 2 (2) 4 ## 2 = 2 A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B. Statement (2) ALONE is sufficient, but statement (1) alone is not suf...

by gibran

Mon May 19, 2008 10:45 am
Forum: Data Sufficiency
Topic: simple problem ....
Replies: 2
Views: 1388