Answer:
Option d. $22154 is the right answer.
Step-by-step explanation:
To solve this question we will use the formula ![A=P(1+\frac{r}{n})^{nt}](https://tex.z-dn.net/?f=A%3DP%281%2B%5Cfrac%7Br%7D%7Bn%7D%29%5E%7Bnt%7D)
In this formula A = amount after time t
P = principal amount
r = rate of interest
n = number of times interest gets compounded in a year
t = time
Now Lou has principal amount on the starting of first year = 10000+5000 = $15000
So for one year ![A=15000(1+\frac{\frac{6}{100}}{1})^{1\times1}](https://tex.z-dn.net/?f=A%3D15000%281%2B%5Cfrac%7B%5Cfrac%7B6%7D%7B100%7D%7D%7B1%7D%29%5E%7B1%5Ctimes1%7D)
![= 15000(1+.06)^{1}](https://tex.z-dn.net/?f=%3D%2015000%281%2B.06%29%5E%7B1%7D)
= $15900
After one year Lou added $5000 in this amount and we have to calculate the final amount he got
Now principal amount becomes $15900 + $ 5000 = $20900
Then putting the values again in the formula
![A=20900(1+\frac{\frac{6}{100}}{1})^{1\times1}](https://tex.z-dn.net/?f=A%3D20900%281%2B%5Cfrac%7B%5Cfrac%7B6%7D%7B100%7D%7D%7B1%7D%29%5E%7B1%5Ctimes1%7D)
![= 20900(1+.06)^{1}](https://tex.z-dn.net/?f=%3D%2020900%281%2B.06%29%5E%7B1%7D)
![= 20900(1.06)=22154](https://tex.z-dn.net/?f=%3D%2020900%281.06%29%3D22154)
So the final amount will be $22154.