# Pop Quiz

Carole likes soda very much. At the local convenience store, for five empty soda bottles she receives a full bottle. As part of the Girl Scouts recycling project, she manages to collect 77 empty bottles. How many bottles of soda will she be able to drink in total?

### 3 guesses to Pop Quiz

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• Paul

Zero – the 77 bottles are still empty as the Girl Scouts do not offer bottle redemption, nor do they offer/sell full bottles of soda in exchange. Carole will have to be satisfied with a tall glass of that bottled water in her kitchen.

• Ryver

77 / 5 = 15 rem.2
17 / 5 = 3 rem.2
5/5 = 1

19

• Dude

19 bottles is correct!

From the initial 77 bottles, she receives 15 full bottles (with two spare empties). From the 17 empties, she receives three more full bottles (with two spare empties). From the five empties she receives one final full bottle.

Ryver, you are today’s winner.