Search found 64 matches
Can anyone explain this rate problem?
Can't get why "t" is 8/3 in the chart. Can you explain? Thanks
- by yumi2012
Wed Aug 14, 2013 6:36 pm- Forum: Problem Solving
- Topic: Can anyone explain this rate problem?
- Replies: 2
- Views: 1825
Help with Two questions?
#1. Which integer values of b would give the number 2002/10^-b a value between 1 and 100?
#2. Which integer values of j would give the number -37,129x10^j a value between -100 and -1?
- by yumi2012
Tue Aug 13, 2013 12:20 pm- Forum: Problem Solving
- Topic: Help with Two questions?
- Replies: 1
- Views: 1510
How 20th root of 2 to the 10th power makes this?
A strain of bacteria multiplies such that the ratio of its population in any two consecutive minutes is constant. If the bacteria grows from a a population of 5 million to 40 million over the course on an hour, by what factor does the population increase every 10 minutes? --------- From Manhattan GM...
- by yumi2012
Mon Aug 12, 2013 8:21 pm- Forum: Problem Solving
- Topic: How 20th root of 2 to the 10th power makes this?
- Replies: 3
- Views: 1833
Flipping signs???
If 4/x <-1/3, what is the possible range of values for x? According to the solution page, If x<0, 4/x<-1/3 becomes 12>-x and becomes -12<x I know that multiplying negative variable cause to flip signs, but in this case, it happened twice in the same equation! (Which equals no sign flips) how does th...
- by yumi2012
Mon Aug 12, 2013 8:08 pm- Forum: Problem Solving
- Topic: Flipping signs???
- Replies: 2
- Views: 1248
Another tough Q for me.. Thanks in advance!
0.99999999/1.0001-0.99999991/1.0003=
A. 10^-8
B. 3(10^-8)
C. 3(10^-4)
D. 2(10^-4)
E. 10^-4
- by yumi2012
Sat Aug 10, 2013 8:05 pm- Forum: Problem Solving
- Topic: Another tough Q for me.. Thanks in advance!
- Replies: 3
- Views: 4016
This question is tough for me.. Help!
An object thrown directly upward is at a height of h feet after t seconds, where h = -16 (t - 3)^2 +
150. At what height, in feet, is the object 2 seconds after it reaches its maximum height?
A. 6
B. 86
C. 134
D 150
E. 214
- by yumi2012
Sat Aug 10, 2013 7:48 pm- Forum: Problem Solving
- Topic: This question is tough for me.. Help!
- Replies: 4
- Views: 1025
Need a better way of solving this
If C + D = 11 and C and D are positive integers, which of the following is a possible value for 5C + 8D? A. 55 B. 61 C. 69 D. 83 E. 88 -------------- The MGMAT book answer review is giving me a time-consuming way of solving this. (like plugging positive integers to this equation) Any clearer and fas...
- by yumi2012
Sat Aug 10, 2013 7:14 pm- Forum: Problem Solving
- Topic: Need a better way of solving this
- Replies: 2
- Views: 902
Can I apply this formula differently?
Working alone, printers x, y, and z can do a certain printing job, consisting of a large number of pages, 12, 15, and 18 hours, respectively. What is the ratio of the time it takes printer x to do the job, working at its rate, to time it takes printers y and z to do the job, working together at thei...
- by yumi2012
Fri Aug 09, 2013 7:40 am- Forum: Problem Solving
- Topic: Can I apply this formula differently?
- Replies: 3
- Views: 1252
Then how can we find the two different original prices? There's no way to figure out which discount price is less without knowing their original prices
- by yumi2012
Tue Aug 06, 2013 8:25 pm- Forum: Problem Solving
- Topic: Can you help with this DS question?- Thanks in advance!
- Replies: 3
- Views: 1059
Can you help with this DS question?- Thanks in advance!
Stores L and M each sell a certain product at a different regular price. If both stores discount their regular price of the product, is the discount price at Store M less than the discount price at Store L ? (1) At Store L the discount price is 10 percent less than the regular price; at Store M the ...
- by yumi2012
Tue Aug 06, 2013 8:11 pm- Forum: Problem Solving
- Topic: Can you help with this DS question?- Thanks in advance!
- Replies: 3
- Views: 1059
MGMAT question in question.
Q#6 on page 99 from Manhattan GMAT book#1 "Fractions&Decimals,Percents" Bradley owns "b" video game cartridges. If Bradley's total is one-third the total owned by Andrew and four times the total owned by Charlie, how many video game cartridges do the three of them own togethe...
- by yumi2012
Tue Aug 06, 2013 6:02 pm- Forum: Problem Solving
- Topic: MGMAT question in question.
- Replies: 4
- Views: 1182
Thoughts on this Question?
This Q is found on page 41 of the MGMAT guide book "Number Properties" Q: If c,d, and e are consecutive integers, is cde odd or even? My answer: "cannot be determined".. because there's no mention of any of integers not being "0" so I thought if any of them is 0 then th...
- by yumi2012
Sun Aug 04, 2013 8:03 pm- Forum: Problem Solving
- Topic: Thoughts on this Question?
- Replies: 2
- Views: 893
Recommend resources for IR
I just took the mock test and missed all IR questions. Can any one please share guidance on study materials and resources?
- by yumi2012
Sun Aug 04, 2013 4:16 am- Forum: GMAT Strategy
- Topic: Recommend resources for IR
- Replies: 1
- Views: 881
having trouble understanding the question...
Servers wrote "Thank you" on randomly selected bills and tips on those bills were higher than bills without the "Thank you" message. Therefore if servers regularly wrote "Thank you" on restaurant bills, their average income from tips would be significantly higher than i...
- by yumi2012
Sat Aug 03, 2013 8:12 pm- Forum: Critical Reasoning
- Topic: having trouble understanding the question...
- Replies: 2
- Views: 1140
Is "Foundations of GMAT Math" good?
I found myself lacking some math basics especially in number properties & geometry. The Manhattan GMAT guide suggests that I try "Foundations of GMAT Math" first. Any other suggestions?
Thanks in advance.
- by yumi2012
Sat Aug 03, 2013 8:59 am- Forum: GMAT Strategy
- Topic: Is "Foundations of GMAT Math" good?
- Replies: 2
- Views: 1348