Eating cakes

Eating cakes

When Pepito and his wife sat down to have tea with their sister-in-law and daughter-in-law, each one ate a different number of cakes (no one was left without eating) and in total they devoured eleven. Pepito's wife ate two and sister-in-law four.

How many cakes did Pepito eat?


Pepito ate five cakes. The only way to add the accounts is that Pepito's sister-in-law and daughter-in-law are the same person. This is only possible if Pepito's wife's sister is married to their son.