Question

Find the amount and compound interest on 80.000 at 10% for 1 and half years compounded half yearly
please answer it fast ​

Answer 1

given :-

• principal - 80,000
• time - 1 1/2 = 3 years
• rate - 10 = 5% half yearly

to find :-

• amount and compound interest

solution :-

$\sf</u></strong><strong><u>:⟼</u></strong><strong><u>amount = p(1 + \frac{r}{100}) ^{n}$

$\sf</u></strong><strong><u>:⟼</u></strong><strong><u>amount = 80000(1 + \frac{5}{100} )^{3}$

$\sf</u></strong><strong><u>:⟼</u></strong><strong><u>amount = 80000(1 + \frac{1}{20} )^{3}$

$\sf</u></strong><strong><u>:⟼</u></strong><strong><u> amount = 80000( \frac{21}{20}) ^{3}$

$\sf</u></strong><strong><u>:⟼</u></strong><strong><u>amount = 80000 \times \frac{21}{20} \times \frac{21}{20} \times \frac{21}{20}$

$\sf</u></strong><strong><u>:⟼</u></strong><strong><u>amount = 92610$

$\sf:⟼difference \: in \: amount : -$

$\sf:⟼92610 - 92400 = 210$

so therefore our required answer is 210.

Answer 2

Answer:

8200

Step-by-step explanation:

P=80000

Rate=10%=10/2=5%

Time=2 years

We have to find amount,

Amount=Principal(1+r/100)n

Amount=80000(1+5/100)²

Amount=80000(1/1+1/20)²

Amount=80000(21/20)²

Amont=80000×21/20×21/20

Amount=88200

Now,C.I=Amount-principal

88200-80000

Answere will be=8200