A merchant bought boxes of chocolate and of candies of total mas$ 4000g and total cost 21600
One box of chocolate weighs 400 g and costs 2400 LL, and one box of candies weighs 200 g and
costs 800 LL.
1) Identify the unknowns, and then translate the given in a system of two equations with two
unknowns.
2) Solve the system to culculate the number of boxes of each kind.