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

$A=P{(1+\frac{R}{100})}^t$ $R\%=8\%/2=4\%$

$140608=P{(1+\frac{4}{100})}^3$ $T=3$ half year.

$140608=P{\left(\frac{26}{25}\right)}^3$

$140608=P\times \frac{26\times 26\times 26}{25\times 25\times 25},P=125,000Rs$