This month's Challenge Question: Specs & Techs from GlobalSpec:
A bag holds 10 fair dice. Some of the dice are 3sided, some 6sided,
and some 7sided. When all of the dice are rolled, the most probable result
(sum of the dice) is 32. How many of each kind of dice are present in the bag?
And the answer is:
The bag contains three 3sided dice, four 6sided dice, and three
7sided dice. The following equation for determining the most likely result for
a given number of similarlysided dice may be helpful:
Where n is the number of dice
and s is the number of sides of each
die. Using this formula we see,
Thus:
Thirtytwo is the most probable result for three 3sided dice, four 6sided dice, and
three 7sided dice rolled at the same time.

Comments rated to be Good Answers:
Comments rated to be "almost" Good Answers: