Search found 36 matches
1) 11 people are behind Jane. We know 5 more people are ahead then behind. so total is 17. 1 is true. so answer can be A or D. 2) total number are 3 times people behind her. let people behind her be x. Total people are 3x. We know that people ahead are 5 more than behind. so people ahead are 5+x. So...
- by TrizMA
Wed Aug 06, 2008 3:01 am- Forum: Data Sufficiency
- Topic: Jane in a line
- Replies: 1
- Views: 1268
1) x=y^3 and n > y. Use 1 to simplify (x/y)^n => y^(2n). We know n>y. But y could be 1 or 2 etc and it will mean (x/y)^n< 1,000. Similarly if you take y to be 10 then (x/y)^n> 1,000. So not sufficient 2) x > 5y and n > x. x/y> 5. Smallest possible value of n=6; when y=1, x=5; 5^6>1,000. We know for ...
- by TrizMA
Wed Aug 06, 2008 2:53 am- Forum: Data Sufficiency
- Topic: Totally Weird!
- Replies: 1
- Views: 1141
my pick is E. S1 not sufficient. it's simple as country X percentage can be anything and we don't know where it may fall. S2 on it's own is not sufficient as 6 countries can have higher then 4.8% each. e.g. 11% each. S1& S2 combined: the two remaining of top 6 have combined percentage of 11.8%. ...
- by TrizMA
Tue Aug 05, 2008 5:20 am- Forum: Data Sufficiency
- Topic: Percent problem
- Replies: 1
- Views: 1239
- by TrizMA
Sun Jul 27, 2008 11:30 pm- Forum: Sentence Correction
- Topic: concerns between
- Replies: 16
- Views: 3424
- by TrizMA
Mon Jun 30, 2008 2:41 pm- Forum: Critical Reasoning
- Topic: CR Circular Argument
- Replies: 8
- Views: 3893
offcourse. my bad. the answer will be then 4 & 13. Have to take care of these silly mistakes. thanks
- by TrizMA
Mon Jun 30, 2008 4:05 am- Forum: Problem Solving
- Topic: GMAT Prep - Interesting Question
- Replies: 4
- Views: 1591
raunekk, u don't have to pick up every number from 0 to 100. here is how i came with 47: i) All prime numbers are odd ii) all even numbers between 2 & 100 are multiples of 100 iii) Odd number multiplied by 2 gives even. so all odd number less than 50 when multiplied by 2 will be less than 100 an...
- by TrizMA
Mon Jun 30, 2008 3:33 am- Forum: Problem Solving
- Topic: gmat prep
- Replies: 7
- Views: 3053
lol :o even gave explanation for 47 as an answer. pls post all answers choices. well, actually i said that prime number greater than 47 can be factor of h(100)+ 1. the point was prime numbers less than 47 cannot be factors of h(100)+1. let's take 43 as an example. 43*2=86 and 86 is multiple of h(100...
- by TrizMA
Mon Jun 30, 2008 3:23 am- Forum: Problem Solving
- Topic: gmat prep
- Replies: 7
- Views: 3053
answer is D. 4 and 14 solve for smallest integer; 3*4=12. but it's smaller than 15; 4*5=20 falls within range. so smallest integer is 4. solve for largest integer 13*14=182; try 14*15= 195. so largest integer is 14. if you go for any number above 14 e.g 15 then multiple 15*16 will be out of range. s...
- by TrizMA
Mon Jun 30, 2008 3:01 am- Forum: Problem Solving
- Topic: GMAT Prep - Interesting Question
- Replies: 4
- Views: 1591
Sorry a typo above:
"For expample; take 2: as 2 is part of h(100) it will divide h(100) but when u add 1 to h(100) it becomes even". it becomes odd
thanks
- by TrizMA
Mon Jun 30, 2008 2:23 am- Forum: Problem Solving
- Topic: gmat prep
- Replies: 7
- Views: 3053
raunekk, here is the solution All prime numbers less than 47 are multiples of h(100). this mean h(100) is divisible by the prime number. However when you add 1 to h(100) the prime number won't be able to divide this new number. The idea is whenever a number x divides a certain number y and u add 1 t...
- by TrizMA
Mon Jun 30, 2008 2:20 am- Forum: Problem Solving
- Topic: gmat prep
- Replies: 7
- Views: 3053
1. prob of head (H)=1/2; prob of not Head= prob of Tail(T)=1/2 prob of HHHTT= (1/2)*(1/2)*(1/2)*(1/2)*(1/2)= 1/32 2. consume(c)+ save(s)= Income (I) c= I-s for 1 dollar he saves he gets 1+r. for s dollars it will be s+sr he will consume half of last year i.e c/2. c/2 = (I-s)/2 Half of last year cons...
- by TrizMA
Mon Jun 30, 2008 1:45 am- Forum: Problem Solving
- Topic: Gmat Questions
- Replies: 3
- Views: 2375
- by TrizMA
Mon Jun 30, 2008 1:05 am- Forum: Problem Solving
- Topic: Probability-Ice cream
- Replies: 5
- Views: 1802
sulabh, u wrote:
i)5,10,15,15
total 6 combination possible. 3 combinations give 20
pls show three combinations which give 20.
i can only count 2 combinations. 1)5,15 2)5,15.
what's the third combination which gives 20?
If OA 1/2, then there must be some other approach to this. What's the OA?
- by TrizMA
Mon Jun 30, 2008 1:02 am- Forum: Problem Solving
- Topic: Probability-Ice cream
- Replies: 5
- Views: 1802
umaa, u have made two mistakes. 1) ur drawing shows that u haven't taken centre as vertex for one side. The triangle line is maybe passing thru centre but not is not a vertex. A vertex at centre means that it's a meeting point for two different sides of triangle. 2) you have already assumed the area...
- by TrizMA
Mon Jun 30, 2008 12:33 am- Forum: Problem Solving
- Topic: largest area of of a triangle GMAT prep prob?
- Replies: 18
- Views: 12485