Given
A note for $10,500 at a discount rate of 5%, for 30 months
find out proceeds of note.
To proof
As given in the question
Principle = $10,500
rate = 5%
Time = 30 months
First convert months into years
1 year = 12 months

thus

= 2.5 year
FORMULA

putting the above value
we get


simple interest =$ 1312.5
proceeds of note = $ 1312.5
total value = $10,500 + $ 1312.5
= $ 11812.5
Hence proved