A housekeeping service bought several cases of paper towels the paper towels come in cases of 12 rolls or 16 rolls last week the service bought 22 cases of paper towels containing a total of 320 rolls how many 16- roll cases did the service buy
Well think about it... 12 rolls is already out since they are asking about 16 rolls. 320 divided by 16 is 20. So, the service bought 20 cases of paper towels containing 16 rolls.
