Question 24
A teacher has some candies. First he gives An 13 candies, then gives Bình $\frac1{10}$ of those remaining. Next he gives Châu 16 candies, then gives Dũng $\frac1{10}$ of those now remaining. An and Bình receive the same total number as Châu and Dũng. How many candies did the teacher have at first?
