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A) Higher income group will not lend support as they will end up paying more in a flat tax regime than under progressive tax rate. B) The increase or decrese in tax revenue to the goverment has not been mentioned. No numbers to support that the revenue collected under flat tax system will be higher....

by kstv

Tue Jun 01, 2010 12:02 am
Forum: Critical Reasoning
Topic: tax reform
Replies: 8
Views: 3599

Using bilbao's diagram
1)P(6,8) so OP = √6²+8² = 10
The perpendicular from P intersects the x axis at D, PD = 8 and DO = 6
PQ > 10 so DQ > √10²- 8² or > 6
OQ > 12
so area of POQ > (8*12)/2 > 48
Sufficient.

by kstv

Mon May 31, 2010 10:55 pm
Forum: Data Sufficiency
Topic: In the rectangular ...
Replies: 3
Views: 3373

Is this really a gmat type question ? Source pls ? If it is, then like the ant I will complete 4 problems in 20 mins. Spiralling downwards rapidly from the median score which I think is 500. Or on a +ve note you must be maxing your quant, so CAT is dishing out such a twister. But why not, practise ...

by kstv

Mon May 31, 2010 6:44 am
Forum: Problem Solving
Topic: insects_geometry
Replies: 8
Views: 1752

2% of the market share is far from a monopoly. Bygrave will not even be able to sucessfully form a cartel to influence prices. The price is dependent on supply, assuming demand is constant here. From 2% base only exponential growth like 2^5 will make Bygrave influence prices. It that too much eco? B...

by kstv

Mon May 31, 2010 6:27 am
Forum: Critical Reasoning
Topic: South African diamond company--CR
Replies: 3
Views: 1624

Is the perimeter of rectangle R greater than 28? Let the sides be a & b so a+b > 14 (1) Area of rectangle R is 50. ab = 50 = 5*5*2 , one side has to be 5 or multiple of 5 here it can be 10 if a = 5 , b = 10 Sufficient (2) Diagonal of rectangle R is 10. a²+b² = 100 Not sufficient as u need know...

by kstv

Mon May 31, 2010 6:14 am
Forum: Data Sufficiency
Topic: rectangle R greater
Replies: 35
Views: 16344

The ant is tracing a 3 D spiral or Helix akin to found in a DNA. When you wind a rt angle triangle along the pipe the hypotenuse traces the spiral in this case the path of the ant. The perpendicular of the rt angle triangle is 20/4 = 5, cos the ant gains 20 mts in 4 circles. The base is TT D = 22/7*...

by kstv

Mon May 31, 2010 5:51 am
Forum: Problem Solving
Topic: insects_geometry
Replies: 8
Views: 1752

liferocks wrote:greatest prime factor of 24! is 23
so number of 23 in 300! will determine the number of 24! in 300!
this is (300/23)=12
Ans option B
But 23 *13 = 299

by kstv

Mon May 31, 2010 3:42 am
Forum: Problem Solving
Topic: max. possible integral value of n
Replies: 12
Views: 2184

Profit = 30 x
1/3 = 10x so share of Mary and Mike = 5x each
Investement Ratio of Mary : Mike = 7 : 3 so 20x is divided in 14x : 6x
Mary - Mike = 19x- 11x = 800

IMO E

by kstv

Fri May 28, 2010 3:47 am
Forum: Problem Solving
Topic: profits
Replies: 6
Views: 2208

5 pieces of wood have an average length of 124 centimeters and a median length of 140 centimeters. What is the maximum possible length, in centimeters, of the shortest piece of wood? A) 90 B) 100 C) 110 D) 130 E)140 OA B Since the average is 124, the shortest piece cannot be 130 or 140. The total o...

by kstv

Fri May 28, 2010 12:20 am
Forum: Problem Solving
Topic: Tricky Arithemtic prob
Replies: 7
Views: 1588

No of shares bought = 10y Each share is bought at 100 - x = 4500/10y = 450/y ---(1) Selling price of each share is 100+x = 6250/10y-10 = 625/(y-1) --------(2) Adding 1 and 2 200 = 450/y + 625/(y-1) Answer option are 50,40,60 and 90 so possible values of y are 5, 4,6,9 and correspondingly (y-1) = 4,3...

by kstv

Thu May 27, 2010 11:44 pm
Forum: Problem Solving
Topic: discounts
Replies: 2
Views: 1791

Though the Q is about dividing the segment 0 to 1, is fifths (1/5) and sevenths (1/7) it is same as dividing the the segment 0 to 35 (LCM of 7&5) in 5 and 7 parts. Integers are easier to handle than fractions. Then the five points are 0------- 7------- 14------- 21------- 28 -------35 and the se...

by kstv

Tue May 25, 2010 5:04 pm
Forum: Problem Solving
Topic: GMATprep2: On the number line
Replies: 6
Views: 10636

Source: Kaplan Verbal workbook The candy manufacturer's claim that employee "theft" costs the company thousands of dollars a year in potential sales is greatly overstated. The loss is actually not much cos' the worker who eats a piece of candy could have never bought a whole box of candy ...

by kstv

Tue May 25, 2010 7:19 am
Forum: Critical Reasoning
Topic: candy manufacturer
Replies: 8
Views: 2846

selango wrote:Quant review 2nd edition
Is the value of n closer to 50 than to 75?
1) 75-n>n-50 2) n>60
The Q does not rule out negative values of n, does it ? Unless u exercise option 2.

by kstv

Tue May 25, 2010 6:50 am
Forum: Data Sufficiency
Topic: Inequalities prob
Replies: 3
Views: 1264

1st contract priced $ 550 is reduced by 10% 2nd and 3 contract priced > $1200 reduced by 15% the resultant reduction will be between 10% to 15% the 2nd and 3rd contract ($2400) > 4 times the 1st contract (550) so a 15% reduction of $ 2400 will be definitely > 12.5% of the total the 2rd & 3rd con...

by kstv

Mon May 24, 2010 6:39 pm
Forum: Data Sufficiency
Topic: Great DS question.
Replies: 11
Views: 2057

Last Sunday a certain store sold copies of Newspaper A for $1.00 each and copies of Newspaper B for $1.25 each, and the store sold no other newspapers that day. If r percent of the store’s revenues from newspaper sales was from Newspaper A and if p percent of the newspapers that the store sold we...

by kstv

Mon May 24, 2010 7:10 am
Forum: Problem Solving
Topic: Last Sunday a certain store sold copies of Newspaper A for $
Replies: 21
Views: 15742