Distributing marbles over bags

[sleek void]

What exactly was the error in the students' algorithm?

[versed gust]

it's kind of a trick question the bags are distinguishable as well

[last bough]

case where one of the three bags has all of the marbles is counted 6 times but there are only 3 such cases

[sleek void]

Thank you. Do you think the second step causes the error?

[sleek void]

Thank you. So, for example, the situation in which box A: {all elements}, box B: ∅, and box C: ∅ is regarded the same as the situation in which box A: {all elements}, box C: ∅, and box B: ∅?

[last bough]

yes

[sleek void]

Thank you for your time

[last bough]

no problem

[sleek void]

.close