2. _To add the interest due at maturity to the principal, before
discounting, if the note bears interest._
EXAMPLES: Case I.--Note not bearing interest.
What is the present worth and true discount on a note of $200, if paid 6
months before due, the discount being 6%.
SOLUTION: Amount of $1 for 6 months at 6% = $1.03. If $1.03 = amount of
$1, $200 is the amount of as many dollars as 200/1.03, or $194.17+.
$194.17 is the present worth. $200 - $194.17 = $5.83 true discount.