Search found 8 matches
If x^2 + y^2 =1, is x + y =1? (1) xy =0 (2) y = 0 IMO: E the question says x^2+y^2=1 which means either of the one should be one and the other a zero, which means for if x+y=1,then one of them is 1 and the other a zero Looking at statements: 1) it says xy=0, for this to be true either both can be ze...
- by coolanubhav2002
Thu Nov 15, 2012 1:54 am- Forum: Data Sufficiency
- Topic: Inequality
- Replies: 30
- Views: 13343
Don't noe if this approach is good but i picked numbers for this problem where x=2,a=3 so (x+a)^2=y^2 which is (2^2+2(6)+3^2)=25, so y= 5,so seeing the statements only statement (A) satisfies the condition where x= 5-3, which gives us 2 so it is sufficient whereas statement 2 gives us x= 5+3, which ...
- by coolanubhav2002
Fri Nov 09, 2012 3:10 am- Forum: Data Sufficiency
- Topic: equations DS
- Replies: 30
- Views: 13152
- by coolanubhav2002
Fri Nov 02, 2012 3:07 am- Forum: Critical Reasoning
- Topic: CR: Closely parallels
- Replies: 5
- Views: 1748
COULD SOMEONE REVIEW THIS ESSAY FOR ME!
The following was used as part of an internet advertising company's appeal to businesses: Furniture Depot employed our internet advertising company to help. Since then its sales increased by 10% over last year's totals. Furniture Depot's success demonstrates how using our internet services can incre...
- by coolanubhav2002
Fri Nov 02, 2012 3:04 am- Forum: GMAT Essays (AWA)
- Topic: COULD SOMEONE REVIEW THIS ESSAY FOR ME!
- Replies: 0
- Views: 1008
IMO: the answer to this question should be D as if the place where the person is standing is not told in the problem,so it is required that the length of the platform should be the time taken for the train to cross the platform i.e. distance=speed *time, 72* 30=2160*1000/3600=600 metres. Overall the...
- by coolanubhav2002
Thu Nov 01, 2012 2:50 am- Forum: Problem Solving
- Topic: What is the length of the platform in meters...............
- Replies: 46
- Views: 27541
CR: Closely parallels
A bullet train travels in excess of 150 miles per hour. Therefore, if a train travels slower than 150 miles per hour, it is not a bullet train. Which of the following most closely parallels the reasoning used in the argument above? (A) An orange ripens only on the vine. If it ripens on the vine, the...
- by coolanubhav2002
Sat Oct 27, 2012 3:48 am- Forum: Critical Reasoning
- Topic: CR: Closely parallels
- Replies: 5
- Views: 1748
Tricky CR pharmaceutical company
A pharmaceutical company claims that its new drug promotes learning in children. To back up its claims, the company points to a study of 300 children who were given the drug, along with a control group of 300 children who were given a placebo. The 300 children who were given the drug reported that t...
- by coolanubhav2002
Sat Oct 27, 2012 3:30 am- Forum: Critical Reasoning
- Topic: Tricky CR pharmaceutical company
- Replies: 3
- Views: 1494
Shark Attacks
Experts studying patterns of shark attacks on humans have noted that attacks tend to diminish when the water temperature drops below 65 degrees Fahrenheit. Until recently, researchers believed this was because sharks prefer warmer water, and thus are present in fewer numbers in colder water. However...
- by coolanubhav2002
Sat Oct 27, 2012 3:01 am- Forum: Critical Reasoning
- Topic: Shark Attacks
- Replies: 2
- Views: 1201