Question

Find the amount which Reena will get on 81920, if she kept it for 18 months at 12 1/2% per annum,
interest being compounded semi-annually.​

Answer 1

Answer:

$given \: that \\ p = rs \: 81920 \\ r = 12.5\% \: p.a \\ n = 1.5 \: \: year$

$when \: the \: interest \: is \: compoun \\ ded \: half - yearly \: we \: have \: = \\ A = P(1 \times \frac{r}{200} ) ^{2n} \\ = rs \: 81920(1 + \frac{12.5}{200} ) ^{2 \times 1.5} \\ = 81920(1.0625) ^{3 } \\ = rs \: 98260$

Thus the required amount is Rs 98260.

Answer 2

Answer:

98260 is the answer and can do it by the formula of amount