Search found 28 matches
daim official answer is wrong !! it is 24 hrs not 16!!
mistake is probably in the wording we are not interpreting it right
- by dimonya
Tue Feb 03, 2009 10:10 pm- Forum: Problem Solving
- Topic: work rate
- Replies: 6
- Views: 1531
vlad, that is equivalent to x=9y ( multiply both sides by-1 and divide by 2) if you want to find out what x and y are you will need two equations one equation with two unknowns cannot be solved two equation with two unknowns can be solved generally u need as many equations as unknowns for the possib...
- by dimonya
Tue Feb 03, 2009 9:58 pm- Forum: Problem Solving
- Topic: OG11-Q220
- Replies: 5
- Views: 1711
in general to solve such equation we need to use logarithms! 1/5^m * 1/ 4^18 = 1/(2*10^35) take natural logarithm of both sides to get m(ln5)+18(ln4)=ln2+35ln10 m(ln5)=ln2+35ln10-18(ln4) m=(ln2+35ln10-18ln4)/ln5 every decent calculator has a tool for calculating natural logarithms evaluating the las...
- by dimonya
Tue Feb 03, 2009 9:50 pm- Forum: Problem Solving
- Topic: GMAT Prep exponent help!
- Replies: 2
- Views: 1262
There are two methods for solving these
1. completing the square
2. Using formula (-b+-sqrt(b-4ac))/2a
i prefer to use 2
so first thing is ti het the equation on standard form (ax^2+bx+c=0)
in your case 4x^2-9x=0
where
a=4
b=9
c=0
answers follows
- by dimonya
Tue Feb 03, 2009 9:16 pm- Forum: Problem Solving
- Topic: HELP Quadratic formula NOOOOOOOO
- Replies: 2
- Views: 1243
- by dimonya
Tue Feb 03, 2009 9:02 pm- Forum: Problem Solving
- Topic: (x) denotes least integer
- Replies: 3
- Views: 2728
oh , you can detect subject of the sentence by the verbs.
verb= action , action applies to subject
so see what the verbs point to
- by dimonya
Tue Feb 03, 2009 8:48 pm- Forum: Sentence Correction
- Topic: Easy way to find the subject of the sentence?
- Replies: 11
- Views: 12581
- by dimonya
Tue Feb 03, 2009 2:30 pm- Forum: Sentence Correction
- Topic: is land singular in this context?
- Replies: 3
- Views: 1441
- by dimonya
Tue Feb 03, 2009 2:29 pm- Forum: Sentence Correction
- Topic: Easy way to find the subject of the sentence?
- Replies: 11
- Views: 12581
ugh, such clumsy wording "not divisible by 2 and 3"
i read it as not divisible by 6.....
should be "not divisible by 2 and/or 3"
thats how u lose marks , darn it
- by dimonya
Tue Feb 03, 2009 1:38 pm- Forum: Problem Solving
- Topic: numbers between 1-100
- Replies: 9
- Views: 72970
look at every student separately first student we can choose 4 object from 20 so 20C4 second student we only have 16 objects left so 16C4 and so on final answer being 20C4*16C4*12C4*8C4*1 The line of thought for B is as follows: if any number can be distributed => all of numbers can be chosen from t...
- by dimonya
Tue Feb 03, 2009 1:29 pm- Forum: Problem Solving
- Topic: Problem on Permutation- Combination
- Replies: 2
- Views: 1311
)) this is a logic test not formula application test
- by dimonya
Tue Feb 03, 2009 11:41 am- Forum: Problem Solving
- Topic: SET Theory
- Replies: 4
- Views: 1757
- by dimonya
Tue Feb 03, 2009 11:31 am- Forum: Critical Reasoning
- Topic: Water Front
- Replies: 4
- Views: 1741
B illustrating a drawback of one source of income client for advertising agency might as well be only source of income. if the management failed to attract other clients and the only client goes company can go under. Here the fault is entirely management's In A that fault is not management's. If you...
- by dimonya
Tue Feb 03, 2009 11:27 am- Forum: Critical Reasoning
- Topic: Comanies are torn
- Replies: 6
- Views: 1887
lol i would say that the answer is actually D.... here is why: 1. the reason for the highlighted area of the sentence is to to clarify to the reader what date the passage is referring to 2. to make the clarification author introduces characteristics of that date: i) presently we know that humans wer...
- by dimonya
Tue Feb 03, 2009 11:10 am- Forum: Sentence Correction
- Topic: sharp-edged flakes
- Replies: 13
- Views: 2525
.. maybe it helps that im an economist but anyways... 1. i agree with hitmewithgmat 2. depression causes, unemployment is one of the implications of depression ,so C,D and E are out for obvious reasons 3. b suggests that depression IS (if it occurs) a strain, while we want to say that depression has...
- by dimonya
Tue Feb 03, 2009 10:53 am- Forum: Sentence Correction
- Topic: SC 1000 Q#49
- Replies: 5
- Views: 1638