Search found 12 matches

DS Question - Not agreeing with the answer

Data Sufficiency

Sorry that's what I meant. I get a "d", but the answer given is "c"

by sxjain3

Sat May 24, 2008 5:02 pm
Forum: Data Sufficiency
Topic: DS Question - Not agreeing with the answer
Replies: 3
Views: 1356

DS Question - Not agreeing with the answer

DS Question - Not agreeing with the answer

This is a question from the DS list of questions in the Word document Sectio 14 / Question - 10 - If the average (arithmetic mean) of six numbers is 75, how many of the numbers are equal to 75 ? (1) None of the six numbers is less than 75. (2) None of the six numbers is greater than 75. The answer p...

by sxjain3

Sat May 24, 2008 3:52 pm
Forum: Data Sufficiency
Topic: DS Question - Not agreeing with the answer
Replies: 3
Views: 1356

GMATprep - working rates

Data Sufficiency

I will go with "E" Solving 1 - 1/Y + 1/X = 3/(2X) (both taken 2/3 of X time So we will get Y = 2X, which is not an absolute value to answer the question. So insufficient Solving 2 - Y - 2X. As above we dont have an absolute value of both X or Y Hence we cant answer the question on how many more hour...

by sxjain3

Thu May 22, 2008 11:20 am
Forum: Data Sufficiency
Topic: GMATprep - working rates
Replies: 5
Views: 1394

PERCENTS DATA SUFF gmatprep

Problem Solving

Statement 2 would have been sufficient if it had mentioned that the sale price of \$1953 was the same as asking price. As it doesnt mention it explicitly its risky to assume that they both are same. and because was not certain, B is insufficient. (I) will provide the answer, but didnt evern try to an...

by sxjain3

Thu May 22, 2008 8:13 am
Forum: Problem Solving
Topic: PERCENTS DATA SUFF gmatprep
Replies: 5
Views: 1382

Divisibility: When the positive integer x is divided by 11,

Problem Solving

Hi Sandra,

As both numbers were prime and were dividing the same number, their LCM was teh closest number they both could have divided, esp that they had the same remainder.

This is the reason, LCM will be a good starting point.

by sxjain3

Tue May 20, 2008 8:19 pm
Forum: Problem Solving
Topic: Divisibility: When the positive integer x is divided by 11,
Replies: 7
Views: 6695

Divisibility: When the positive integer x is divided by 11,

Problem Solving

Both 11 and 19 are Prime Numbers and hence their LCM = 11*19 = 209 is the closest number which can be looked at here. Now when dividing this number the remainder is 3, so the number being divided i.e. x = 209+3 = 212. So when 212 is divided by 11, the quotent y = 19 and remainder r = 3. So when y = ...

by sxjain3

Tue May 20, 2008 4:43 pm
Forum: Problem Solving
Topic: Divisibility: When the positive integer x is divided by 11,
Replies: 7
Views: 6695

coordinates? word problem...from gmat prep

Problem Solving

Cafe is closer to Dan's house by 2 miles. so if distance between cafe and karen's house is x, then distance between cafe and Dan's house is x-2. (Karen)-------(X)-------(Cafe) \ | \ | \ | (10) (x-2) \ | \ | \ | (Dan) Its a Right angle triangle, so using Pyto therom. x^2 + (x-2)^2 = 10^2 the equation...

by sxjain3

Tue May 20, 2008 4:25 pm
Forum: Problem Solving
Topic: coordinates? word problem...from gmat prep
Replies: 3
Views: 2386

exponent

Problem Solving

root (.0026) = root(26)/root(10000) = root(26)/100 = ~5/100 = ~.05

It cannot be .06 as that would required the value in question to be root(.0036) or something very close.

Hope this helps.

by sxjain3

Tue May 20, 2008 4:13 pm
Forum: Problem Solving
Topic: exponent
Replies: 3
Views: 1610

Inequalities (Pos/Neg): Is |a| + |b| > |a + b| ?

Data Sufficiency

Based on the information provided, |a| + |b| can be greater than |a+b| if either of a or b is a negative value. If both are either positive or negative, the two sides of the equation will be same and hence may still provide the answer to this DS question, if we cna ascertain the signs of a and b Now...

by sxjain3

Tue May 20, 2008 4:03 pm
Forum: Data Sufficiency
Topic: Inequalities (Pos/Neg): Is |a| + |b| > |a + b| ?
Replies: 3
Views: 1434

wat is d soln

Problem Solving

Q. 16 - if the squared value is postiive and odd, it means: 1) XY (product of x and y) is odd a) that means that X and Y are also odd (as the product of 2 odd number is odd, else its even, if one of the numbers is even) b) if both X and Y are odd their sum is even 2) XY (product of A and y) could be...

by sxjain3

Tue May 20, 2008 5:28 am
Forum: Problem Solving
Topic: wat is d soln
Replies: 5
Views: 1707

value of mod(x+7)

Data Sufficiency

the answer is C, as from 2 conditions, we can arrive at a common value for x which is 11.

Per the rules, the 2 conditions will not contradict each other and as the unique value of x as 11 satisfies the 2 conditions, we can say that the value of x is 11 and hence the question can be answered.

by sxjain3

Mon May 19, 2008 2:24 pm
Forum: Data Sufficiency
Topic: value of mod(x+7)
Replies: 15
Views: 3289

Explanation plzz..

Sentence Correction

decline in - its used if there is a reduction, like "the decline in sales"

decline of - its used if there is a fall, like "the decline of Roman Empire"

So I will go with "C"

Thoughts?

by sxjain3

Mon Mar 24, 2008 11:09 am
Forum: Sentence Correction
Topic: Explanation plzz..
Replies: 5
Views: 2036