Marc L. answered 04/02/25
An experienced tutor with over 10 years of working with students
First I want to address the error in the question. The question starts with 60 days but the final question is 50 days. I'm going to assume the both numbers should be 60 days.
So let's fine the total amount of interest earned if we held the bond a full year:
$150,000 * 5% = $7500
Now we apply the interest only the the days it was earned:
$7500 * 60/365 days = $1232.88
Now take that interest and divide it by your principle amount
$1232.88 / $150,000 = .82%
Lucas earned .82% interest while holding the T-Bill