Sally likes soda very much. At the local convenience store, for 5 empty soda bottles she receives a full bottle. As part of the Girl Guide’s recycling initiative, she manages to collect 77 empty bottles. How many bottles of soda will she be able to drink in total?
Answer
19 bottles
From the initial 77 bottles, she receives 15 full bottles (with 2 spare empties). From the 17 empties, she receives 3 more full bottles (with 2 spare empties). From the 5 empties she receives one final full bottle.
