In short, it's asking how many of the entrants will advance to the next round.
Response:
a)12 b)12 c)36
Detailed steps:
a) Identify the least common multiple. The quantity of marbles corresponds to that value multiplied by n (with n representing an integer)
b) The least common multiple is calculated as 4*3=...
c)12*3 =?
Afterward, simply divide by 2, 3, and 4 to find the solution
