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If u(u+v)
If u(u+v) different from 0 and u >0, is 1/(u+v) < 1/u + v?
1) u+v >0
2) v>0
OA B Please explain. Thanks
Source: GMATPrep Pack 1
- by massi2884
Wed May 16, 2012 9:36 am- Forum: Data Sufficiency
- Topic: If u(u+v)
- Replies: 10
- Views: 5090
A clothing store's revenue last May was 6 percent less than its revenue last April. The store's revenue last May was greater than its expenses last May, and the store's revenue last April was greater than its expenses last April. Was the store's gross profit last May less than its gross profit last ...
- by massi2884
Wed May 16, 2012 4:56 am- Forum: Data Sufficiency
- Topic: GMATPrep Question Pack 1
- Replies: 3
- Views: 1786
- by massi2884
Wed May 16, 2012 12:52 am- Forum: Data Sufficiency
- Topic: GMATPrep Question Pack 1
- Replies: 3
- Views: 1786
- by massi2884
Tue May 15, 2012 11:49 am- Forum: Data Sufficiency
- Topic: GMATPrep Question Pack 1
- Replies: 5
- Views: 4316
Inequalities with two inequality signs
Hi, I have a doubt. How can we manipulate inequalities with two inequality signs? For example this one: x + 2 < y < x + 6 If I move the numbers to the other side changing the signs, I obtain the following: x < y -2 - 6 < x But it looks weird because it's like x < y - 8 < x Thanks.
- by massi2884
Tue May 15, 2012 10:48 am- Forum: Problem Solving
- Topic: Inequalities with two inequality signs
- Replies: 2
- Views: 864
- by massi2884
Sat May 12, 2012 9:36 am- Forum: Data Sufficiency
- Topic: If ax+b=0 is x>0?
- Replies: 2
- Views: 5914
And before last term in a list
Could you please explain why in OA B there's no "and" before "authentic", which is the last term in the list? Thanks. Although many art patrons can readily differentiate a good debenture from an undesirable one, they are much less expert in distinguishing good paintings and poor ...
- by massi2884
Fri May 11, 2012 10:37 am- Forum: Sentence Correction
- Topic: And before last term in a list
- Replies: 2
- Views: 1062
The use of chemical pesticides
Can you please explain why B is wrong? OA is E The use of chemical pesticides in this country is equally extensive or more so than ten years ago. (A) equally extensive or more so than ten years ago (B) equal to or more extensive than ten years ago (C) as extensive as ten years ago or more (D) equal ...
- by massi2884
Fri May 11, 2012 10:25 am- Forum: Sentence Correction
- Topic: The use of chemical pesticides
- Replies: 2
- Views: 833
OG13 9
In 1979 lack of rain reduced India's rice production to about 41 million tons, nearly 25 percent less than those of the 1978 harvest.
A.less than those of the 1978 harvest
B.less than the 1978 harvest
C.less than 1978
D.fewer than 1978
E.fewer than that of India’s 1978 harvest
- by massi2884
Fri May 11, 2012 10:03 am- Forum: Sentence Correction
- Topic: OG13 9
- Replies: 5
- Views: 1908
Hi aneesh,
thanks for your reply. However, how can you please confirm that we need to go ahead and make the calculation to find n?
Because if for example the result were n > 20,000, that statement wouldn't be sufficient I guess.
Thanks.
- by massi2884
Fri May 11, 2012 4:17 am- Forum: Data Sufficiency
- Topic: OG13 141
- Replies: 3
- Views: 1897
- by massi2884
Thu May 10, 2012 11:04 am- Forum: Data Sufficiency
- Topic: If x and y are integers
- Replies: 3
- Views: 6734
OG 79
In the figure above, is the area of triangular region ABC equal to the area of triangular region DBA ?
(1) AC^2 = 2(AD)^2
(2) â–³ABC is isosceles
OA C
- by massi2884
Thu May 10, 2012 10:54 am- Forum: Data Sufficiency
- Topic: OG 79
- Replies: 8
- Views: 4950
OG13 141
Last year, a certain company began manufacturing product X and sold every unit of product X that it produced. Last year the company's total expenses for manufacturing product X were equal to $100,000 plus 5 percent of the company's total revenue from all units of product X sold. If the company made ...
- by massi2884
Thu May 10, 2012 10:44 am- Forum: Data Sufficiency
- Topic: OG13 141
- Replies: 3
- Views: 1897
r and s are roots
If r and s are roots of the equation x^2+bx+c=0, is rs<0?
1) b<0
2) c<0
OA B Source OG13
- by massi2884
Thu May 10, 2012 10:29 am- Forum: Data Sufficiency
- Topic: r and s are roots
- Replies: 3
- Views: 3982
Six shipments
S1=1/4 S2=1/5 S3=1/6 S4=3/20 S5=2/15 S6=1/10 Six shipments of machine parts were shipped from a factory on two trucks, with each shipment entirely on one of the trucks. Each shipment was labeled either S1, S2, S3, S4, S5, or S6. The table shows the value of each shipment as a fraction of the total v...
- by massi2884
Thu May 10, 2012 10:22 am- Forum: Data Sufficiency
- Topic: Six shipments
- Replies: 9
- Views: 3799