Question 14
An, Bình and Châu have some sweets. First, An gives Bình and Châu as many sweets as each already has: for example, if Bình has 10 and Châu has 7, An gives them 10 and 7 respectively. Next, Bình gives Châu and An as many sweets as each then has. Finally, Châu gives An and Bình as many sweets as each then has. After the third turn, each has 16 sweets. How many sweets did An have at first?
