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
a) 3
b) 4
c) 4¹/2
d) 5
e) 6
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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.