Search found 37 matches
Hi NikolayZ, you are right that the answer is 2, but you are perhaps wrong on the compound interest part. The CI should be 10000(1 + x/100)^n - 10000. How can this be 10000(x/100)^n ?
- by acenikk
Thu Nov 05, 2009 5:07 am- Forum: Problem Solving
- Topic: Gprep easy problem
- Replies: 6
- Views: 1582
@Nirmal: you are right. thanks.
BTW you have any idea if there exists any relation between the side of a square inscribed in the circle and the length of the arc formed by that side of the square?
- by acenikk
Tue Sep 15, 2009 8:02 am- Forum: Problem Solving
- Topic: Length of an arc
- Replies: 7
- Views: 1985
Hi Nirmal, Can you tell me how you got 30 degree for the angle OBD ?
@Uptowngirl, what is the answer ?
For me, the area comes out to be 64Pi. I guess ABDE forms a square. If yes, then the radius can be calculated as 2*Pi*r = 4*4Pi => r = 8.
- by acenikk
Tue Sep 15, 2009 6:37 am- Forum: Problem Solving
- Topic: Length of an arc
- Replies: 7
- Views: 1985
- by acenikk
Fri Aug 28, 2009 1:34 am- Forum: Critical Reasoning
- Topic: female bats
- Replies: 17
- Views: 3936
- by acenikk
Thu Aug 20, 2009 6:25 am- Forum: Data Sufficiency
- Topic: set P
- Replies: 7
- Views: 1496
Let one side of the rectangle be a, and another side be b. Perimeter will be 2*(a+b).
From 1, a^2 + b^2 = 100
From 2, ab = 48
(a+b)^2 = a^2 + b^2 + 2ab
= 100 + (2*48)
= 196
So (a+b) = sqrt(196) = 14.
Hence, Perimeter is 2*(a+b) = 2 * 14 = 28.
- by acenikk
Thu Aug 20, 2009 6:10 am- Forum: Data Sufficiency
- Topic: Can someone explain how to do this data sufficiency problem?
- Replies: 4
- Views: 1333
- by acenikk
Wed Aug 19, 2009 6:09 am- Forum: Critical Reasoning
- Topic: Quebec Bridge
- Replies: 10
- Views: 4798
- by acenikk
Wed Aug 19, 2009 5:45 am- Forum: Critical Reasoning
- Topic: Tough CR
- Replies: 14
- Views: 3110
- by acenikk
Wed Aug 19, 2009 4:52 am- Forum: Sentence Correction
- Topic: Railway commuters
- Replies: 10
- Views: 1767
- by acenikk
Wed Aug 19, 2009 4:31 am- Forum: Critical Reasoning
- Topic: Orthodox medicine
- Replies: 17
- Views: 6107
- by acenikk
Wed Aug 19, 2009 4:25 am- Forum: Critical Reasoning
- Topic: Fires
- Replies: 11
- Views: 3573
yes, i agree that A is the answer. For example, if s=1 t=7, s is not greater than t if s=1 t=1, s is not greater than t I cannot find any value of s and t that satisfies the condition 1, and gives s > t. And, second condition is not sufficient as : if s=1 t=7, then s is not greater than t if s=1 t=-...
- by acenikk
Wed Aug 19, 2009 1:03 am- Forum: Data Sufficiency
- Topic: inequalities with mod ds
- Replies: 14
- Views: 2352
- by acenikk
Tue Aug 18, 2009 6:23 am- Forum: Data Sufficiency
- Topic: SD DS!!
- Replies: 8
- Views: 1626
I would go for D. 1) n! / (3! (n-3)!) = n! / (4! (n-4)!) => n(n-1)(n-2)(n-3)! / 3! (n-3)! = n(n-1)(n-2)(n-3)(n-4)! / 4! (n-4)! => n(n-1)(n-2) / 3! = n(n-1)(n-2)(n-3) / 4! => n(n-1)(n-2) / n(n-1)(n-2)(n-3) = 3! / 4! => 1 / (n-3) = 3! / 4! => 1 / (n-3) = 1 / 4 => n-3 = 4 => n = 7 Solving in the simila...
- by acenikk
Tue Aug 18, 2009 5:18 am- Forum: Data Sufficiency
- Topic: Factorial DS
- Replies: 7
- Views: 1727
- by acenikk
Tue Aug 18, 2009 5:07 am- Forum: Data Sufficiency
- Topic: Is x a positive number?
- Replies: 11
- Views: 3811