Answer:
a. 4/3 so the good is more expensive in the U.S
Step-by-step explanation:
Nominal Exchange rate 1 $ = 10 pesos
Nominal exchange rate is the exchange rate which does not consider the impact of inflation. On the other hand, real exchange rate is calculated after adjusting inflation.
Real Exchange rate = Nominal exchange rate ×
![(Price\ of\ good\ in\ U.S)/(Price\ of\ good\ in\ Mexico)](https://img.qammunity.org/2021/formulas/business/college/d5cncbwilvcn7wsi8wj3zfvv2lmav76c47.png)
Real Exchange rate = 10 × 20/150 = 4/3
Since the exchange rate is per USD, this means the good is more expensive in the U.S.