|
|
Post by King James I on Oct 26, 2007 14:12:31 GMT
In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly. The Question: How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly?
JD100 for the first correct answer
|
|
Kieran
Experiened Citizen
[M:0]
Posts: 433
|
Post by Kieran on Oct 26, 2007 14:45:49 GMT
19 Have guessed three fruits correctly
3 have guessed all correctly
This is A rough guess
|
|
|
|
Post by Spangle on Oct 26, 2007 16:27:53 GMT
well,
123 people in total
43, 39, 31 have got 0-2 respectively so 113 people are accounted for...
10 people left,
the others have an average distance between results as 6, so we need to find two numbers that add to 10 with a difference of six
8 and 2
did 8 people get 3 right and 2 people get all of them right?
|
|
|
|
Post by King James I on Oct 26, 2007 17:27:14 GMT
It is not possible to guess only three fruits correctly: the fourth fruit is then correct too! So nobody has guessed three fruits correctly and 123-43-39-31 = 10 people have guessed four fruits correctly. Spangle was closest, but not close enough  |
|
|
|
Post by Spangle on Oct 26, 2007 17:33:21 GMT
shiznit i should have known that... we did something like that in maths the other week
|
|
Kieran
Experiened Citizen
[M:0]
Posts: 433
|
Post by Kieran on Oct 26, 2007 17:52:06 GMT
I hate Riddles grrr :@
|
|
|
|
Post by Spangle on Oct 26, 2007 19:52:53 GMT
I used to have riddles on my old site once |
|
William
Experiened Citizen
The Jamzinian Royalists
Posts: 358
|
Post by William on Oct 26, 2007 21:02:33 GMT
riddles are fun I just missed this  |
|
|
|
Post by Spangle on Oct 26, 2007 22:28:10 GMT
serves you right for not being on the pc 24/7
|
|
William
Experiened Citizen
The Jamzinian Royalists
Posts: 358
|
Post by William on Oct 27, 2007 8:03:51 GMT
I know.. the guilt
|
|
|
|
Post by Spangle on Oct 27, 2007 16:13:17 GMT
here's the trick, get superglue, apply to eyes, press eyes against screen, works for me ;D
|
|
kris
Regular Citizen
Posts: 121
|
Post by kris on Oct 28, 2007 15:40:38 GMT
What superglue do you us ?
|
|
|
|
Post by Spangle on Oct 28, 2007 19:54:49 GMT
the good stuff, not any old cheap superglue
|
|
Jamzinian Lion Order
