Search found 102 matches


See you have to realise that you are looking for reason other than the plastic sled to undermine the argument. Now that leaves us with two options. B and C. B says it is bacause they don't wear helmets etc. C says it is because of the wider variety of conditions that plastic sleds are exposed to tha...

by chufus

Wed Jan 18, 2012 7:09 am
Forum: Critical Reasoning
Topic: Plastic sleds
Replies: 30
Views: 14377

There is a car and a truck, in the same duration, car traveled 120 miles, and truck traveled 100 miles. What is the average speed of truck in this period? 1) In the first 30 min, car traveled 30 miles. 2) The average speed of the car is 10 miles/hour more than the truck. 1) since we dont know car's...

by chufus

Thu Jan 12, 2012 11:44 am
Forum: Data Sufficiency
Topic: word problem
Replies: 10
Views: 1223

There is a car and a truck, in the same duration, car traveled 120 miles, and truck traveled 100 miles. What is the average speed of truck in this period? 1) In the first 30 min, car traveled 30 miles. 2) The average speed of the car is 10 miles/hour more than the truck. 1) since we dont know car's...

by chufus

Thu Jan 12, 2012 11:39 am
Forum: Data Sufficiency
Topic: word problem
Replies: 10
Views: 1223

X=2.543*10^K, where k is an integer, what is the thousandth digit of x? 1). The hundredth digit of x is 0 2). Hundredth digit minus thousandth digit is 3 1) hundredth digit of x is 0. we dont know anything about k whether it is +ve or -ve. so insuff. 2) this can happen only when k = 1 then 3-0 = 3....

by chufus

Thu Jan 12, 2012 10:36 am
Forum: Data Sufficiency
Topic: number properties
Replies: 4
Views: 1103

Touche ! B it should be !

by chufus

Thu Jan 12, 2012 10:21 am
Forum: Data Sufficiency
Topic: algebra
Replies: 2
Views: 812

sqrt((x-5)^2) = 5-x? sqrt((x-5)^2) = |x-5| |x-5| = 5-x The above equation has two values x-5 = 5-x or -(x-5) = 5-x depending on whether (x-5) > or < 0 1. -x|x| > 0 the above is possible only for x < 0, therefore (x-5) < 0 So |x-5| = 5-x => -(x-5) = 5-x. SUFF 2. States that (x-5) < 0 SUFF IMO D I th...

by chufus

Thu Jan 12, 2012 8:40 am
Forum: Data Sufficiency
Topic: OG10 -qn 260
Replies: 6
Views: 1436

Could you edit the question. As is the answer i 8. but if a2 is a^2 then the answer is 12.

by chufus

Wed Jan 11, 2012 7:29 pm
Forum: Problem Solving
Topic: Prime numbers and divisibilty
Replies: 10
Views: 1965

My pick is "C" as well. All others weaken the argument considerably. Agree with ArunangsuSahu !

by chufus

Tue Jan 10, 2012 3:04 am
Forum: Critical Reasoning
Topic: Rhesus Monkey
Replies: 7
Views: 1745

I think C is the correct answer. If the rate of assemblance had increased that could be one factor contributing to the decline of assemblers since lesser people will be required to assemble the television, provided the number of televisions required remains the same. Since this provides an alternate...

by chufus

Tue Jan 10, 2012 3:00 am
Forum: Critical Reasoning
Topic: CR Assumption Question
Replies: 4
Views: 1811

Only B points out the flaw. Since the comparison for the argument is done between federal expenses in Arcadia and profits earned from factories in Arcadia, the argument assumes that it was the industrialists funding the war and hence they made no profit. If the expenses were incurred by people other...

by chufus

Tue Jan 10, 2012 2:50 am
Forum: Critical Reasoning
Topic: Distopian industrialists
Replies: 12
Views: 3374

We are using it to "Negate" a theory. It is to be presented as an argument "Against". It can only be used to refute B, hence B should be the answer.

by chufus

Tue Jan 10, 2012 2:07 am
Forum: Critical Reasoning
Topic: genetics
Replies: 6
Views: 1559

Has to be D. What is the original answer?

by chufus

Tue Jan 10, 2012 2:03 am
Forum: Critical Reasoning
Topic: technologically advanced educational tools
Replies: 5
Views: 1709

I think D should be the answer. The argument says that after a study of other contributing factors towards accidents, insurance companies will come up with better guidelines for safer travel and hence prevent future accidents. So the argument is presuming the investigation of current accidents will ...

by chufus

Tue Jan 10, 2012 1:58 am
Forum: Critical Reasoning
Topic: Assumption Question
Replies: 4
Views: 1500

If x, y, and k are positive integers such that (x/(x+y))(10)+(y/(x+y))(20)=k and if x<y, which of the following could be the value of k? a.10 b.12 c.15 d.18 e.30 PS: i didnt understand the long explanation for the correct answer D (x/(x + y))(10) + (y/(x + y))(20) = k and x < y 10x + 20y = k(x + y)...

by chufus

Wed Jan 04, 2012 3:39 am
Forum: Problem Solving
Topic: Value of k (OG12 - PS-148)
Replies: 8
Views: 1812

Continuing from the discussions above........ Here is my solution... Distance = d = same for both trips.. Magic Formula: Distance = Time x Speed Lets find the time for each. Uphill = d/x Downhill = d/y Total Distance = 2d Total TIme = (d/x + d/y) So average Speed = (2d)/(d/x + d/y) = (2xy)/(x+y) Hen...

by chufus

Wed Jan 04, 2012 2:42 am
Forum: Problem Solving
Topic: Up the hill, down the hill (VIC)
Replies: 5
Views: 3958