Answer:
The real rate of return is 0.10%
Explanation:
For computing the real rate of return, we need to apply the formula which is shown below:
( 1 + nominal rate) = ( 1 + real rate) × (1 + inflation rate)
So,
The real rate = {(1 + nominal rate) ÷  (1 + inflation rate)} - 1
           = ((1 + 3.10%) ÷  (1 + 2%)} - 1
           = (1.031 ÷ 1.02) - 1
           = 1.0107 - 1
           = 0.10
The Government T-bills is only the nominal rate so we considered this only