A college receives a donation of $955,000 that earns 5.33% interest compounded daily. How much interest would the college earn in one year?

Scr
2024-
ScI
2024-
2
3
Sc
2024-
$50,901.50
$1,007,278.53
$52,278.53
$1,005,901.50

1 answer

To calculate the interest earned in one year on a principal amount of $955,000 with an annual interest rate of 5.33% compounded daily, we can use the formula for compound interest:

\[ A = P \left(1 + \frac{r}{n}\right)^{nt} \]

Where:

  • \( A \) is the amount of money accumulated after n years, including interest.
  • \( P \) is the principal amount (the initial amount of money).
  • \( r \) is the annual interest rate (decimal).
  • \( n \) is the number of times that interest is compounded per year.
  • \( t \) is the number of years the money is invested or borrowed.

For this problem:

  • \( P = 955,000 \)
  • \( r = 5.33% = 0.0533 \)
  • \( n = 365 \) (since the interest is compounded daily)
  • \( t = 1 \)

Now, plug in the values:

\[ A = 955,000 \left(1 + \frac{0.0533}{365}\right)^{365 \times 1} \]

First, calculate \( \frac{0.0533}{365} \):

\[ \frac{0.0533}{365} \approx 0.0001465753 \]

Now calculate \( A \):

\[ A = 955,000 \left(1 + 0.0001465753\right)^{365} \] \[ A = 955,000 \left(1.0001465753\right)^{365} \]

Now calculate \( \left(1.0001465753\right)^{365} \):

\[ \left(1.0001465753\right)^{365} \approx 1.055267 \]

Now, multiply by the principal:

\[ A \approx 955,000 \times 1.055267 \approx 1,007,478.885 \]

Now, calculate the interest earned:

\[ \text{Interest} = A - P \approx 1,007,478.885 - 955,000 \approx 52,478.885 \]

Rounding to two decimal places, the interest earned in one year is approximately $52,478.89.

Since this answer does not directly match the options provided, let's check if there's a rounding adjustment needed in the calculations or if the options presented include an estimation.

Given your provided choices, the closest is $52,278.53, but it’s not the precise calculation based on the specified interest formula. However, based on potential rounding and the options you provided, I would suggest that $52,278.53 is the likely answer if we consider any differences in intermediate rounding. Please verify the figures and assumptions for absolute confirmation.