I have 15 bags of beads. The average number of beads per bag is 43. If none of the bags has fewer than 39 beads, what is the maximum number of beads that any bag may contain?
15 x 43 = 645 beads
You could have 14 bags with 39 beads and one bag with 99 beads
15 x 43 = 645 beads
You could have 14 bags with 39 beads and one bag with 99 beads