Search found 23 matches
- by NicoFalcon
Fri Dec 12, 2008 9:32 am- Forum: Data Sufficiency
- Topic: is sqrt x an integer?
- Replies: 14
- Views: 2252
I´m confused. I agree that (2) provides an answer, having the age om certain year, we can deduce in which year Ellen was born (1975-18= 1957) (1) Too provides the same data, through an indirect approach, giving Pete´s info. If Pete is 211 (weird) years older than Ellen and Pete was born in 1956, the...
- by NicoFalcon
Thu Dec 11, 2008 11:10 am- Forum: Data Sufficiency
- Topic: year of birth?
- Replies: 6
- Views: 2774
(1) No info about how BC and CD compare. INSUFF
(2) Compares AB and BC, useless to compare BC and CD. INSUFF
(1) + (2)
We are still without any data about how BC compares to CD
Answer is E
- by NicoFalcon
Thu Dec 11, 2008 11:04 am- Forum: Data Sufficiency
- Topic: Line segment
- Replies: 2
- Views: 1342
(1) A ratio of 16/9 can be achieved with a lot of number combinations, it´s usells info to reacho a number for female employees (2) Is only a comparation, so it can´t be used to get an absolute value. Using the info from (1) and (2) we can construct the following equation: (x+105)/x=16/9, that will ...
- by NicoFalcon
Thu Dec 11, 2008 10:57 am- Forum: Data Sufficiency
- Topic: ratio
- Replies: 3
- Views: 1279
So, 30 marbles, which 20 red and 10 blue. Take 9 marbles, how mane red left in the jar? (1) Says that the ratio of red to blue is 2:1 among the 9 taken. Basically, you took 6 red and 3 blue out of the jar (only possible ratio 2:1 in 9 marbles). Which let´s you calculate the remaining red ones (20-6)...
- by NicoFalcon
Thu Dec 11, 2008 10:42 am- Forum: Data Sufficiency
- Topic: ratio
- Replies: 2
- Views: 1283
Sorry, I´m not used to Practice Test nomenclature, is the correct answer E? I came out with an "E" answer. (1) Says nothing about the positioning of X, only that the 4 highest contributors funded 56% of the budget. (1) is Insuff (2) Says that X contributed with 4.8%, which is useless in or...
- by NicoFalcon
Thu Dec 11, 2008 10:20 am- Forum: Data Sufficiency
- Topic: United Nation
- Replies: 2
- Views: 1181
I´m too with D.
(1) is pretty obvious.
(2) For ((1/2)^(x - 1)) < 0.5 to be true, x should be >2.
Since with x=2, ((1/2)^(x - 1))=1/2 and it will start diminishing as x increases, x is AT LEAST 2 to accomplish with ((1/2)^(x - 1)) < 0.5
- by NicoFalcon
Thu Dec 11, 2008 7:24 am- Forum: Data Sufficiency
- Topic: Quantitative - DS
- Replies: 4
- Views: 1531
The possible values for 2 digit numbers which the sum of its positive digits is 4 are:
13
22
31
(1) Tells us that the number is odd, so it can be either 13 or 31. Insuff
(2) Tells us that xx*2 is less than 44, which only leaves 13 a possible alternative. 2 is sufficient alone. So B
- by NicoFalcon
Thu Dec 11, 2008 7:04 am- Forum: Data Sufficiency
- Topic: mgmat DS
- Replies: 4
- Views: 1714