For each room she paints, Helen gives up the opportunity to bake 40 cakes.Josh can paint one room in the time it takes him to bake 60 cakes.What is the opportunity cost of a cake for Helen?

Question

Quizplus · Accepted Answer

Helen gives up painting 1 room to bake 40 cakes. 
Josh can paint 1 room in the time it takes him to bake 60 cakes. 
Therefore, the opportunity cost of 1 cake for Helen is painting 1/40 of a room.

For Each Room She Paints, Helen Gives Up the Opportunity