Question

Two units of the same type of money must be the same in terms of what they will buy, which is the principle of? .

Answer 1

that is the principle of uniformity 

for example, you have two types of money that worth $ 1 :

- you have 20 of 5 cents coin
- and a single dollar bill

Event though their material is different, they still have the same purchasing power

hope this helps

Answer 2

Two units of the same type of money must be the same in terms of what they will buy, which is the principle of?

Answer: Two units of the same type of money must be the same in terms of what they will buy, which is the principle of uniformity. A good example of this is having a 20 dollar bill from 2005. With this bill you will be able to buy 20 dollars worth of goods or services today.

I hope it helps, Regards.