Question

Amelia and Julian were traveling through time, and they decided to visit March 2020 in the hope of changing history. After arriving, they realized that their designated apartment was out of toilet paper. Given that they must go to the supermarket, they decided to buy both toilet paper (X) and paper towels (Y). Their preferences are given by U = 4X + Y, they have $150 to spend, and the prices are P_X = 3 and P_Y = 2. How many units of toilet paper do they buy?

Answer 1