Answer :
Here,
A = 400
t = 2
n = 4
r = 9% = 0.09
Applying the compound interest formula,
[tex]\begin{gathered} A=P(1+\frac{r}{n})^{nt} \\ 400=P(1+\frac{0.09}{4})^8 \\ 400=P(1.1948) \\ P=334.77 \end{gathered}[/tex]The initial amount was 334.77.
Here,
A = 400
t = 2
n = 4
r = 9% = 0.09
Applying the compound interest formula,
[tex]\begin{gathered} A=P(1+\frac{r}{n})^{nt} \\ 400=P(1+\frac{0.09}{4})^8 \\ 400=P(1.1948) \\ P=334.77 \end{gathered}[/tex]The initial amount was 334.77.
