Answer:
$1,800
Step-by-step explanation:
The computation of the amount of interest income that should be excluded is as follows:
Given that
Proceeds received $10,000 
Principle $7,000 
Interest $3,000 
Qualified Higher Educational expenses $6,000 
Now the amount excluded is 
= $3,000 ×($6,000 ÷ ($7,000 + $3,000)) 
= $1,800