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Length of an integer
For any integer k > 1, the term “length of an integer� refers to the number of positive prime factors, not necessarily distinct, whose product is equal to k. For example, if k = 24, the length of k is equal to 4, since 24 = 2 × 2 × 2 × 3. If x and y are positive integers such that x > 1, y > ...
- by paridhi
Fri Jul 30, 2010 8:22 am- Forum: Problem Solving
- Topic: Length of an integer
- Replies: 8
- Views: 2335
I suppose I mis-understood the question and took the balance on the card to mean the amount unspent.
- by paridhi
Fri Jul 30, 2010 7:34 am- Forum: Problem Solving
- Topic: Spending limit
- Replies: 2
- Views: 1004
Spending limit
Sally has a gold credit card with a certain spending limit, and a platinum card with twice the spending limit of the gold card. Currently, she has a balance on her gold card that is 1/3 of the spending limit on that card, and she has a balance on her platinum card that is 1/5 of the spending limit o...
- by paridhi
Fri Jul 30, 2010 7:00 am- Forum: Problem Solving
- Topic: Spending limit
- Replies: 2
- Views: 1004
Draw a conclusion
Everyone who has graduated from TopNotch High School has an intelligence quotient (IQ) of over 120. Most students with an IQ of over 120 and all students with an IQ of over 150 who apply to one or more Ivy League universities are accepted to at least one of them. The statements above, if true, best ...
- by paridhi
Mon Jul 26, 2010 8:36 am- Forum: Critical Reasoning
- Topic: Draw a conclusion
- Replies: 3
- Views: 1240
Since number needs to be even, only 2 and 6 can be used in the units place.
Suppose, 2 is in the units place, then number of such 5 digit numbers will be 4!
Suppose, 6 is in the units place, then number of such 5 digit numbers will be 4!
Thus answer should be 2*4! = 48
what is the OA?
- by paridhi
Fri Jul 23, 2010 9:34 pm- Forum: Problem Solving
- Topic: Problem on probability
- Replies: 4
- Views: 1209
thanks..
i mistakenly took each probability as 5/12, 4/12 & 3/12 but since each step will reduce the number of balls this is incorrect.
thanks for explaining
- by paridhi
Fri Jul 23, 2010 9:19 pm- Forum: Problem Solving
- Topic: Probability
- Replies: 36
- Views: 15015
Probability
Three balls aee drawn (w/o replacement) from an urn containing 5 Blue balls, 4 Green balls and 3 yellow balls. What is the probability of drawing a blue ball, green ball and a yellow ball in that order?
A. 1/220
B. 1/60
C. 5/144
D. 1/22
E. 47/60
OA is D
Can someone please explain....
- by paridhi
Fri Jul 23, 2010 8:55 am- Forum: Problem Solving
- Topic: Probability
- Replies: 36
- Views: 15015
damn!!! careless mistake which I did not even notice while I was trying to figure out what I did wrong. I took the 2 mins interval as 2 hours interval.
Thanks everyone.
- by paridhi
Wed Jul 14, 2010 7:58 pm- Forum: Problem Solving
- Topic: MGMAT - percent change
- Replies: 14
- Views: 3159
now i wonder why was I not able to do it. Thanks for the explanation 
MGMAT's explanation was so twisted in comparision to this.
- by paridhi
Wed Jul 14, 2010 9:21 am- Forum: Data Sufficiency
- Topic: Expensive jacket - MGMAT
- Replies: 9
- Views: 1437
MGMAT - percent change
On average, the bottle-nosed dolphin comes up for air once every two minutes; the beluga whale, a close relative, comes up for air on average once every five minutes. The number of times a bottle-nosed dolphin would come up for air in a 24 hour period is approximately what percent greater than the n...
- by paridhi
Wed Jul 14, 2010 9:19 am- Forum: Problem Solving
- Topic: MGMAT - percent change
- Replies: 14
- Views: 3159
Expensive jacket - MGMAT
If Jim earns x dollars per hour, it will take him 4 hours to earn exactly enough money to purchase a particular jacket. If Tom earns y dollars per hour, it will take him exactly 5 hours to earn enough money to purchase the same jacket. How much does the jacket cost? (1) Tom makes 20% less per hour t...
- by paridhi
Wed Jul 14, 2010 8:56 am- Forum: Data Sufficiency
- Topic: Expensive jacket - MGMAT
- Replies: 9
- Views: 1437
- by paridhi
Thu Jul 08, 2010 11:40 pm- Forum: Problem Solving
- Topic: Probability - playing cards
- Replies: 4
- Views: 1427
Probability - playing cards
Bill has a small deck of 12 playing cards made up of only 2 suits of 6 cards each. Each of the 6 cards within a suit has a different value from 1 to 6; thus, for each value from 1 to 6, there are two cards in the deck with that value. Bill likes to play a game in which he shuffles the deck, turns ov...
- by paridhi
Thu Jul 08, 2010 10:56 pm- Forum: Problem Solving
- Topic: Probability - playing cards
- Replies: 4
- Views: 1427
- by paridhi
Thu Jul 08, 2010 2:40 am- Forum: Reading Comprehension
- Topic: LCD displays
- Replies: 7
- Views: 1859
i hope u are not from engineering back ground. But the sentence says The amount of power required to untwist the crystals to display images, even dark ones, is much lower than that required for analogous processes using other technologies, such as plasma the above sentence says that LCD display con...
- by paridhi
Thu Jul 08, 2010 2:39 am- Forum: Reading Comprehension
- Topic: LCD displays
- Replies: 7
- Views: 1859