Sequential Dice and Coin Operations: Finding the Minimum Value After Three Rolls

Question

Alberto throws a die and a coin at the same time.

On the cube there are digits from 1 to 6, and on one side of the coin is written - and on the other side is written +.

First Alberto throws the dice and the coin and writes down the value obtained (e.g., if he rolls the dice 3 and the coin comes up -, he writes down -3). Alberto then rolls again and distributes the value received. Alberto repeats the action one more time.

What is the smallest value Alberto can get in the end?

Step-by-Step Solution

To solve this problem, let's follow these steps:

  • Step 1: Analyze each throw separately. The lowest value from one roll of the die is 1, and with the negative side of the coin, this gives -1.
  • Step 2: Since the lowest die number is 1, and when coupled with the "-" side of the coin, it yields -1. If both throws yield -1, the combined result will be -1 + (-1) = -2.
  • Step 3: The smallest die result is 6 (largest face), which maximizes negative impact when the coin is "-", giving -6.
  • Step 4: Considering two rolls both yielding -6 (maximum negative outcome), we have the sum -6 + (-6) = -12. However, only one roll is considered directly for the smallest one-time roll, resulting in -6.
  • Step 5: This indicates one throw sequence would achieve -6 effectively for a minimum value in an independent roll comparison, focusing on one result, not overall combined outcomes.

Upon reviewing, to achieve the smallest value in a single session roll (not progressive sum): the result after one complete throw session (one die, one coin) is potentially a single value here.

Therefore, the smallest result possible from the entire process is indeed 6-6, considering drags of progressive rolling assessments.

Answer

6 -6