All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars
 perplexus dot info

 Mean Quest (Posted on 2006-12-10)
When asked what her math average was, a student coyly responded: "I've taken four tests to date and when I add the highest score with my lowest score and divide the result by the sum of my other two scores, I get a ratio of 1.4"

Assuming all scores are equally weighted and each grade is a real number between 0 and 100 inclusive, find four scores that produce the highest possible average (arithmetic mean), and show that a higher average is not possible.

 See The Solution Submitted by Dennis Rating: 4.0000 (1 votes)

 Subject Author Date answer K Sengupta 2008-12-30 03:47:49 re(3): A and D don't matter AvalonXQ 2007-01-07 02:18:25 re(2): A and D don't matter Steve Herman 2006-12-14 23:12:41 re: An off topic question about formatting Charlie 2006-12-11 11:11:15 re: A and D don't matter Charlie 2006-12-11 09:34:36 A and D don't matter Steve Herman 2006-12-11 09:08:37 re(4): Question. Bractals 2006-12-10 13:31:08 Solution for Integer Scores Bractals 2006-12-10 13:23:43 re(3): Question. tomarken 2006-12-10 13:22:16 re(2): Question. Bractals 2006-12-10 13:18:26 re: Question. John Reid 2006-12-10 13:11:48 Question. Bractals 2006-12-10 13:05:16 An off topic question about formatting John Reid 2006-12-10 12:47:57 re: Solution John Reid 2006-12-10 12:44:05 Solution tomarken 2006-12-10 11:42:30

 Search: Search body:
Forums (0)
Random Problem
Site Statistics
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox: