Answer:
A) remains unchanged at 40.
Explanation:
ffsf
real exchange rate = (Nominal exchange rate x Price of the foreign basket) / (Price of the domestic basket)
the price of the US basket did not change over the couse of the year while the basket of indian goods increased by 25%
We plug this into the formula and obtain:
real exchange rate = 50 x 1/1.25 = 40