Final answer:
To calculate the bank discount, you can use three methods: ordinary interest, proceeds, and effective interest rate. Using the given values, the bank discount is $520 using ordinary interest, $520 using proceeds, and $507.79 using the effective interest rate.
Step-by-step explanation:
To calculate the bank discount, we can use three different methods: ordinary interest, proceeds, and effective interest rate.
A) To calculate the bank discount using ordinary interest, we can use the formula: Bank Discount = Face Value * Discount Rate * Time in Days / 360
For this example, the calculation would be: Bank Discount = $12,000 * 13% * 120 / 360 = $520
B) To calculate the bank discount using proceeds, we can use the formula: Bank Discount = Face Value - Proceeds
For this example, we need to calculate the proceeds first. Proceeds = Face Value - Bank Discount = $12,000 - $520 = $11,480
Then, Bank Discount = $12,000 - $11,480 = $520
C) To calculate the bank discount using the effective interest rate, we can use the formula: Bank Discount = Face Value * (1 - (1 + Effective Interest Rate * Time in Days / 360)^(-1))
Using the given values, the calculation would be: Bank Discount = $12,000 * (1 - (1 + 13% * 120 / 360)^(-1)) = $507.79 (rounded to the nearest hundredth).