English to Italian Other Mathematics & Statistics

Ahmes sets this puzzle involving equivalent values in Problem 72 of the Rhind Papyrus. We can quickly recognize that the problem is one of percentages, but that was not a concept that fitted with the Egyptian mathematical system.

A group of men have 100 hekats of barley of impurity (pesu) 10. They wish to exchange it for a fair quantity of inferior barley, of pesu 45. What is the fair quantity?