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?

Zero. John can have the store deliver the water. (Lol)

Ceiling[13/3] = Ceiling[4 1/3] = 5 (The ceiling function returns the smallest integer greater than or equal to its argument.)

John would need to make 5 trips to the store.