Official Solution: Bunuel
A large retailer stocks two types of chocolate brands on their shelves. The store manager reviews the yearly sales data and finds that they sold twice as many units of Chocolate A as they did of Chocolate B. However, the yearly revenue generated from both types of chocolate brands was also equal.
Given that twice as many units of Chocolate A were sold as of Chocolate B, while the revenue generated from both types of chocolate brands was equal, this implies that the price per unit of Chocolate B, in turn, was twice that of Chocolate A. To put it algebraically, assuming the number of Chocolate A and Chocolate B units sold were 2m and m, respectively, and the price per unit of Chocolate A and Chocolate B were x and y, respectively, we get:
Correct answer:
Chocolate A Price : $15 Chocolate B Price : $30