Answer:
$48
Step-by-step explanation:
Data provided in the question:
Life annuity = $3,200
Monthly payments = $80
George's Life expectancy = 100 months
Now,
The annuity exclusion ratio = 
 
 
or
The annuity exclusion ratio = 
 
 
or
The annuity exclusion ratio = $32
Therefore, 
Return on capital per payment = $32
Hence,
The amount of the first $80 payment will George include in his gross income = $80 - $32 
= $48