Search found 10 matches
I used an approach similar to the first approach that you have mentioned, but I must say the second approach is interesting. Might be useful when one is getting stuck with long calculations...Another approach is to assign k a "nice" value.
Let's see what happens when k = 0
- by batwaraanirudh
Thu Feb 06, 2014 11:39 pm- Forum: Problem Solving
- Topic: To find m-k
- Replies: 4
- Views: 1741
The question stem states: a and n are positive integers and it is asking whether (2a)^2x = n Lets look at statement 2 first: The information given is only about x and nothing is mentioned about a or n. With only this information we would not be able to comment anything about the relationship between...
- by batwaraanirudh
Thu Feb 06, 2014 10:59 pm- Forum: Problem Solving
- Topic: Equations with three variables
- Replies: 4
- Views: 1558
I followed the following approach: Assuming every line has 100 characters. => with 8% margin, the total number of characters written in one line is 100-8 = 92 Time taken to write 20 lines is 10 mins => time taken to write 1 line = 92 characters is 10/(92*20) Now, when the margin is increased by 25% ...
- by batwaraanirudh
Thu Feb 06, 2014 10:45 pm- Forum: Problem Solving
- Topic: percentage
- Replies: 5
- Views: 7690
Weaken the Argument CR Problem
The dean of computing must be respected by the academic staff and be competent to oversee the use of computers on campus. The only deans whom academics respect are those who hold doctoral degrees, and only someone who really knows about computers can competently oversee the use of computers on campu...
- by batwaraanirudh
Fri Sep 27, 2013 1:16 am- Forum: Critical Reasoning
- Topic: Weaken the Argument CR Problem
- Replies: 5
- Views: 1740
Assumption based CR PRoblem
The dean of computing must be respected by the academic staff and be competent to oversee the use of computers on campus. The only deans whom academics respect are those who hold doctoral degrees, and only someone who really knows about computers can competently oversee the use of computers on campu...
- by batwaraanirudh
Fri Sep 27, 2013 1:14 am- Forum: Critical Reasoning
- Topic: Assumption based CR PRoblem
- Replies: 3
- Views: 1677
Support CR Question
Economist: Some policymakers believe that our country’s continued economic growth requires a higher level of personal savings than we currently have. A recent legislative proposal would allow individuals to set up savings accounts in which interest earned would be exempt from taxes until money is ...
- by batwaraanirudh
Fri Sep 27, 2013 1:07 am- Forum: Critical Reasoning
- Topic: Support CR Question
- Replies: 2
- Views: 1360
A natural number consists of only 0’s and 1’s. If the number is divisible by 375, then what is the least possible number of 0’s and 1’s in the number respectively? Prime factors of 375 = 5*5*5*3 So the natural number that we are talking about should be divisible by 3 For any number to be di...
- by batwaraanirudh
Thu Sep 12, 2013 4:26 pm- Forum: Problem Solving
- Topic: Number system
- Replies: 6
- Views: 2691
A cube is painted with red colour and then cut into 64 small identical cubes. If two cubes are picked randomly from the heap of 64 cubes, what is the probability that both of them have exactly two faces painted red? (a)23/168 (b)47/84 (c)1/4 (d)31/63 (e)41/63 Total number of available cubes to choo...
- by batwaraanirudh
Thu Sep 12, 2013 4:06 pm- Forum: Problem Solving
- Topic: probability
- Replies: 5
- Views: 3597
- by batwaraanirudh
Tue Aug 20, 2013 7:56 pm- Forum: I just Beat The GMAT!
- Topic: First attempt: 750 (in 2 months)
- Replies: 15
- Views: 48809
- by batwaraanirudh
Tue Jul 30, 2013 10:47 pm- Forum: I just Beat The GMAT!
- Topic: 510 to 700 in the GMAT in a month :)
- Replies: 5
- Views: 7980