A total of 512 players participated in a single tennis knock out tournament. What is the total number of matches played in the tournament? (Knockout means if a player loses, he is out of the tournament). No match ends in a tie. A 511 B 512 C 256 D 255 E 1023 I chose D, solved this way - after first...

Hello, Can you please tell me how to solve this: The heights of students at a certain college are symmetrically distributed to both sides of the mean x. If 34 percent of the distribution lies at more than one standard deviation s from the mean, what percent of the distribution is approximately more...

Is the Answer C?[spoiler][/spoiler]

Let C = total # of cars at the dealership So, given is: (1/3)C = s Remaining 1/5 translates as follows: (1/5)(C-(1/3)C) = N From the above two equations, we know that N + s = C C - s = N Plug in the above values Solve for c in terms of N (1/5)C - (1/15)C = N (3C-1C)/15 = N 2C = 15N C = 15/2 N Plug i...

I am not getting an intuitive understanding of the 106% and 105%. Could someone please explain it? An alternate approach is to set up a PROPORTION. In Diane's state -- where the tax is 6% -- $530 is equal to 106% of the retail price. In the neighboring state -- where the tax is 5% -- $x is equal to ...