   
$97 per or $327 package |
|||
  |
Simple Video Explanations |
||
-
Problem Solving Exercises
So here are a few questions I answered regarding the wording of math problems. Watch out! It’s a bit tricky!These are good exercises. Here’s how to think about them:
Question #1:
“There are twice as many Computers as there are printers.”Step 1: Notice the number of computers is twice that of printers.
In other words: computers = 2 * (printers)
Step 2: So: c = 2p (NOT 2c = p !!!!!!!!!!!)The sentence: “There are twice as many computers as there are printers” implies there are more computers than there are printers.
Check your equation –does it make sense? which side is larger? c? or 2p?It takes 2 p’s to equal a ‘c.’ So ‘c’ is bigger. This makes sense!
Answer: c = 2pQuestion #2:
“There are 10 more grapes than apples, and one fourth as many appples as pears.”
Assume g= grape,a = apple, p = pearsStep 1: Think: Reword “10 more grapes than apples” to: grapes = 10 more than apples
g = 10 + aStep 2:Reword “one fourth as many apples as pears” to: apples = 1/4 pears
“One fourth as many apples as pears” implies there are fewer apples than pears. How much fewer? one fourth! Make sure your final equation shows that there are fewer apples than pears.
a = (1/4)papples = a fraction of number of pears–so this makes sense!
Answer: a = (1/4)pGMAC Cracks Down on Cheating in China
So looks like the GMAC organization that runs the GMAT exam is cracking down on cheating in China.
Already in 2009, 32 scores from China have been revoked by GMAC, while 24 Chinese test-takers have been blocked by GMAC from retaking the GMAT exam for five years, GMAC says.
GMAC says that in 2009 alone, 32 scores were revoked by GMAC. Another 24 Chinese test takers were blocked from retaking the GMAT for 5 years.
There was a website (www.passion.org.cn) that was giving away live GMAT test questions (ones actually being used on the exam) for a fee.
So now there’s going to be increased security measures including the use of palm vein readers, digital photographs, and passport scanners.GMAC also has sophisticated web crawling software to find which websites are distributing GMAT questions.
For more information, you can read the original article here.
Extra Problem Solving Mixture Questions Added
Just so you know, we added some mixture problems to the problem solving section. They are some tricky questions. You’ll get to see them inside the Problem Solving Pill section.Idiomatic Expressions | GMAT Prep questions
Here’s another question a student asked. Worth a look to understand how the GMAT guys test you on idiomatic expressions.After July, anyone disposing of or servicing refrigerators must capture the chlorofluorocarbons in the refrigerant chemicals.
(A) anyone disposing of or servicing
(B) those who dispose or service
(C) anyone disposing of or who services
(D) the disposal or repair of
(E) someone who disposes or repairsHere the keyword is “OR”
On the left: “anyone disposing of…refrigerators”
On the right: “anyone…servicing refrigerators”This is fine. “Dispose” is one of those idiomatic words that require the “of” afterwards. You dispose OF something. You don’t just dispose something.
After July, anyone disposing of or servicing refrigerators must capture the chlorofluorocarbons in the refrigerant chemicals.
(A) anyone disposing of or servicing [this is ok, idiomatically "disposing of" is required---both are -ING verbs]
(B) those who dispose or service [you need the OF after dispose]
(C) anyone disposing of or who services [not consistent....could be "anyone who disposes of or who services"--or make them both -ING verbs--and that would become (A)]
(D) the disposal or repair of [is it the person who captures the chlorofluorocarbons or the repair that does it? it must be the person! so this wording is not correct]
(E) someone who disposes or repairs [you need "disposes OF"]
Stumble Upon
Del.icio.us
Buzz
Get Updates Via RSS!
