Search found 3 matches
contradictory O explanation
What is the value of x? 1) SqRt of X^4 = 9 2) SqRt of X^2 = -X OA is C Explanation seems counter to what i have learned about square roots so far. SqRt of X^2 should equal |X| which is equal to -X OR X. The explanation given to address 2) states that the SqRt of X^2 is positive, hence -X needs to be...
- by Kancz44
Tue May 29, 2012 7:29 pm- Forum: Data Sufficiency
- Topic: contradictory O explanation
- Replies: 5
- Views: 1461
- by Kancz44
Sun May 20, 2012 10:24 am- Forum: Data Sufficiency
- Topic: Inequality
- Replies: 2
- Views: 882
tough RDT
Jane gives Karen a 5m head start in a 100 m race. Jane is beaten by Karen by 0.25 m. In how many meters more would Jane have overtaken Karen? The explanation is provided in the toughest 100 quant problems resource on this site, but its hard to follow. Can someone pls help with not just the numerical...
- by Kancz44
Mon May 14, 2012 2:14 pm- Forum: Problem Solving
- Topic: tough RDT
- Replies: 3
- Views: 1217