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GMAT PREP NOW - Probability Lesson 13
This lesson asks you two find the probability that the product of two selected numbers from a give set are positive. However, it seems to me that the way it is explained in the video determines whether the sum of the two numbers are positive, not the product. Has anyone else encountered this or am I...
- by [email protected]
Tue Mar 19, 2013 8:36 am- Forum: Data Sufficiency
- Topic: GMAT PREP NOW - Probability Lesson 13
- Replies: 7
- Views: 1903
- by [email protected]
Mon Mar 04, 2013 12:36 pm- Forum: Data Sufficiency
- Topic: Does xy=x2 (the 2 is the exponent)
- Replies: 4
- Views: 2256
Does xy=x2 (the 2 is the exponent)
Data Sufficiency Q#59 from Algebra and equation solving module in GMAT Prep Now online course does xy=x2 (x2 is x squares) 1)y2 - xy = 0 (y2 is x squared) 2)x2 - 2xy +y2 = 0 (x2 and y2 are squared) I said answer was D that both are sufficient but the video said answer is B but the way I solved state...
- by [email protected]
Mon Mar 04, 2013 12:27 pm- Forum: Data Sufficiency
- Topic: Does xy=x2 (the 2 is the exponent)
- Replies: 4
- Views: 2256