Question

What sum invested for $1\frac{1}{2}$ years compounded half-yearly at the rate $8\%p.a.$ will amount to $Rs.140608$?

Answer 1

$n=1\frac{1}{2}$yrs

Amount$=$Rs. $140608$

Rate$=8$

$A=P{(1+\frac{R}{200})}^{2n}$

$140608={(1+\frac{8}{200})}^3$

$P=125000$.