# Suppose, 2/3 of 2/3 of a certain quantity of barley is taken, 100 units of barley are added and the original quantity recovered. find the quantity of barley? This is a real question from the Babylonian, posited 4 millenia ago...

##### 1 Answer

Sep 12, 2016

#### Explanation:

Let the quantity of barley be

It is mentioned that this is equal to the original quantity, hence