110 students are going on a trip, and each student needs one water bottle.
So we multiple 110 students* 1 water bottle each to get 110 water bottles are needed for all the students.
There are 6 water bottles in a pack- and we need 110 water bottles.
So divide the number of water bottles needed by the amount in a pack.
110/6= 18 1/3
We need 18 packs a little bit more- so we round 18 up because we can't buy 1/3 of a pack or have students go thirsty.
So we need 19 packs of water for the students on the trip.