A ship is holding 10 cases with 11 cartons in each case. Each carton has 12 boxes. If there are 7,920 dolls collectively in the cases, how many dolls are in each box?

dolls

The number of dolls in each case: 7,920 ÷ 10 = 792

The number of dolls in each carton: 792 ÷ 11 = 72

The number of dolls in each box: 72 ÷ 12 = 6