Answer:
2.88%
Step-by-step explanation:
According to the fisher equation :
(1 + Nominal interest ) = (1 + real interest) (1 + inflation rate)
(1.07) = (1.04) x (1 + real interest)
(1.07) / (1.04) = (1 + real interest)
1.028846
real interest rate = 2.88%