7) John needs 13 bottles of water from the store. John can only carry 3 at a time. What's the minimum number of trips John needs to make to the store?
a) 3
b) 4
c) 4¹/2
d) 5
e) 6​

d) 5 trips

Total bottles needed / Bottles carried per trip = Minimum number of trips

13 / 3 = 4 with a remainder of 1

Since John cannot carry a fraction of a bottle, he needs to make an additional trip to pick up the remaining 1 bottle.

So, the minimum number of trips John needs to make to the store is 4 + 1 = 5.