Fair dice & Impossible 18+
Source: Bangladesh National Mathematical Olympiad 2018
February 27, 2019
number theorycountingBdmoDice
Problem Statement
BdMO National 2018 Higher Secondary P3Nazia rolls four fair six-sided dice. She doesn’t see the results. Her friend Faria tells her that the product of the numbers is . Faria also says the sum of the dice, satisfies . Nazia tells Faria that cannot be one of the numbers in the set {} if the product is . Which number in the range {} is an impossible value for ?