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Sanju, i am not sure what you are implying. The area of a triangle is ( 1/2 )*(b*h) Base X Height is 4/(sqrt 2) * 4/(sqrt 2), which I am certain is equal to 16/2 which equals 8. Now 1/2 * 8 (because we still need to multiply by 1/2 ) = 4. But 4 isn't an answer choice... Area of the Square is being ...

by bdevas01

Fri Oct 15, 2010 7:26 am
Forum: Problem Solving
Topic: two sides lie
Replies: 10
Views: 1229

Sanju, i am not sure what you are implying.

The area of a triangle is (1/2)*(b*h)

Base X Height is 4/(sqrt 2) * 4/(sqrt 2), which I am certain is equal to 16/2 which equals 8.

Now 1/2 * 8 (because we still need to multiply by 1/2) = 4.

But 4 isn't an answer choice...

by bdevas01

Fri Oct 15, 2010 6:25 am
Forum: Problem Solving
Topic: two sides lie
Replies: 10
Views: 1229

I'm not sure what I'm doing wrong here..4 coordinates are (0,2) (2,0) (0, -2) and (-2, 0).

That means that the diagonal of the square is 4 so each side is 4/(sqrt 2).

Area = base x height = 4/(sqrt 2) * 4/(sqrt 2) = 8 x 1/2 = 4.

But thats not one of the answer..

by bdevas01

Fri Oct 15, 2010 5:34 am
Forum: Problem Solving
Topic: two sides lie
Replies: 10
Views: 1229

Brian and fskilnik, you guys hit it on the nail! Thank you so much for the prompt and detailed response! I think the key take away here is that both the apples and the oranges have an equal chance of appearing in any of the five available slots and this is the reason why there is a 2/5 chance for th...

by bdevas01

Thu Oct 14, 2010 3:55 pm
Forum: GMAT Math
Topic: A little fuzzy on this probability concept
Replies: 4
Views: 1488

A little fuzzy on this probability concept

There was a post on this site that discussed this topic but I couldn't find it so I'm posting it again. A bag has 3 oranges and 2 apples, what is the probability of picking out an apple on the third try. I think the answer is 2/5, which is exactly the same probability as picking it out on the first ...

by bdevas01

Thu Oct 14, 2010 9:22 am
Forum: GMAT Math
Topic: A little fuzzy on this probability concept
Replies: 4
Views: 1488

Source : GMATCLUB tests If there are four distinct pairs of brothers and sisters, then in how many ways can a committee of 3 be formed and NOT have siblings in it? 8 24 32 56 192 OA C Siblings A1 A2 B1B2 C1 C2 D1D2 First slot can be filled by any sibling so 8C1 Then second slot can be filled by any...

by bdevas01

Thu Oct 14, 2010 8:35 am
Forum: Problem Solving
Topic: Permutation/Combination Question
Replies: 5
Views: 1684

Awesome point, but aren't the directions for the SC section to choose the best possible answer out of the five choices? A lot of times all 5 answers are horribly structured and worded, but one is worded slightly less horrible. So in your example, question # 118 probably had 4 other choices which re...

by bdevas01

Fri Oct 08, 2010 5:52 pm
Forum: Sentence Correction
Topic: Correct placement of prepositional phrases
Replies: 26
Views: 10423

stuart's post is a nice summary, and he has included a helpful takeaway (place the modifiers as close as possible to the things they modify). do note, though, that "as close as possible" can sometimes, though infrequently, still be pretty far away. specifically, the problem with (a) is that it seem...

by bdevas01

Fri Oct 08, 2010 9:05 am
Forum: Sentence Correction
Topic: Correct placement of prepositional phrases
Replies: 26
Views: 10423

I believe it is D. A and B use the word 'which' and that might incorrectly refer to night instead of the entire action of the temperature dropping. C uses the future tense "this will mean" when sentence is orginally in the past tense. E "emerging from the soil" is ambiguous becuase we don't know if ...

by bdevas01

Fri Oct 08, 2010 8:55 am
Forum: Sentence Correction
Topic: The temperature dropped suddenly last night..
Replies: 5
Views: 3997

The answer is E The is a parallelism question: The supreme court decided that in certain legal respects, a corporation has the same rights as does an individual. AND The supreme court decided that in certain legal respects, a corporation is able to donate money to politicians. ______________________...

by bdevas01

Fri Oct 08, 2010 4:54 am
Forum: Sentence Correction
Topic: Tough SC question2
Replies: 17
Views: 3152

The bald eagle, once endangered, has made such a dramatic comeback that the government is considering removing them from the list of endangered species. A. is considering removing them from the list of endangered species B. had considered removing them from the endangered species list C. considered ...

by bdevas01

Fri Oct 08, 2010 4:41 am
Forum: Sentence Correction
Topic: Tough SC question
Replies: 6
Views: 1318

Yeah, the "and" indicated two subjects so the "have" is the correct option. Remember, when you have "and" it is typically to list a series of subjects, which makes the subject plural. The verb must agree with the subject so the verb must be plural as well. Example: The clown and the elephant have pr...

by bdevas01

Fri Oct 08, 2010 4:27 am
Forum: Sentence Correction
Topic: HAS vs HAVE when dealing with 2 singular subjects?
Replies: 5
Views: 20358

Hey Ian,

could you clarify if they were both the same number the answer would be 10?

I didn't quite understand that part. Thanks!

by bdevas01

Thu Sep 16, 2010 5:55 pm
Forum: Problem Solving
Topic: the product p^3 q^6
Replies: 6
Views: 3529

Why didn't anyone post the answer?

Its 7 right?

The LCM of both numbers is 5400, which can be broken down into prime numbers: (2^2)x(3^3)x(5^2) and the values of a, b and c are 2, 3 and 2 respectively.

2 + 3 + 2 = 7, so D. 7.

by bdevas01

Wed Aug 18, 2010 5:43 am
Forum: Problem Solving
Topic: Quant Integer Properties- Optimum Approach
Replies: 8
Views: 1118

KMittal, you are absolutely correct. But at the end I think you meant to say that 43 is the only number that does NOT satisfy the criteria. The trick to doing these problems is to play with the information given, until you end up with the variables stated in the problem (in this case, j - k) just as...

by bdevas01

Wed Aug 11, 2010 6:34 am
Forum: Problem Solving
Topic: Even-Odd
Replies: 4
Views: 855