Search found 8 matches
- by ECMoyano
Thu Jul 28, 2011 8:36 am- Forum: Problem Solving
- Topic: scale of five
- Replies: 3
- Views: 1580
I tried substituting the numbers in terms of 2000 (i.e. walked x feet east, than 2x south, than roughly 1.5x northeast, so on and so on) but I couldn't really get a clear cut answer. I believe this is a geomotry question, I just wish I had sharper skills in that category. Just drawing this out, it l...
- by ECMoyano
Thu Jul 28, 2011 8:17 am- Forum: Problem Solving
- Topic: Direction problem
- Replies: 3
- Views: 1227
A museum offers four video programs that run continuously throughout the day, each program starting anew as soon as it is finished. The first program runs every 15 minutes, the second every 30 minutes, the third every 45 minutes, and the fourth every 40 minutes; the first show of each program start...
- by ECMoyano
Thu Jul 28, 2011 7:43 am- Forum: Problem Solving
- Topic: Manhattan Minority Problems
- Replies: 5
- Views: 1600
I just take the middle number which is located in C, and able to find it quickly. But I may not be as lucky as this one on real GMAT! thank you golaevan for your excellent explanation! I did the same. I too am afraid that I won't be that lucky on the GMAT. To solve by plugging in: I started at 10, ...
- by ECMoyano
Mon Jul 25, 2011 12:59 pm- Forum: Problem Solving
- Topic: number property
- Replies: 7
- Views: 5410
I don't know any exponential shortcuts so this has me on guess mode.Target2009 wrote:Its 1. So B.
Care to share how you approached this?
Thanks!
-ECM
- by ECMoyano
Mon Jul 25, 2011 12:46 pm- Forum: Problem Solving
- Topic: Nice Question
- Replies: 4
- Views: 1626
The answer is 32. You can consider simply counting with any parent driving and then adjusting the other 4 family members in 16 ways then multiply the resultant by 2 (which is for the second parent driving). Or you can consider all ways without any restrictions then subtracting the possibilities wit...
- by ECMoyano
Mon Jul 25, 2011 12:39 pm- Forum: Problem Solving
- Topic: Difficult Prob Question
- Replies: 6
- Views: 3444
Assume that The gold card limit is L1.the platinum card limit is L2. so the remaining on the gold card is 1/3 L1 the remaining on the platinum card is 1/5 L2 we've know that 1/2 L2=L1 so the equation is L2-( 1/3L1+1/5L2) [ Note that this is the remaining amount, so when you subtract the remaining f...
- by ECMoyano
Mon Jul 25, 2011 12:26 pm- Forum: Problem Solving
- Topic: Man Question
- Replies: 4
- Views: 1618
First time poster :) I did the old Box method that I picked up in my review book. R * T = D 50mph * unknown minutes = 20 miles unknown rate * unknown rate = 20 miles 50 miles traveled/60 minutes. I simplify to 5miles every 6 minutes. 5 miles goes into 20 a total of 4 times. 6 minutes times 4 = 24 So...
- by ECMoyano
Mon Jul 25, 2011 12:13 pm- Forum: Problem Solving
- Topic: cant figure out this OG question!
- Replies: 10
- Views: 8153