Question

Kala invested Rs. 12,000 in a business. She will be paid an interest at 10 % per

annum compounded annually. Find the Amount and C I credited against her

name after 3 years.​

Answer 1

Answer:

solved

Step-by-step explanation:

principal = 12,000 rs

rate of interest = 10% per annum

Time = 3 yrs

S.I = 12,000×10×3/100

= 360rs

Amount = principal × Simple interest

= 12,000 × 360 Rs

= 7,20,00 Rs

Answer 2

Answer:

${\huge{\pink{\underline{\underline{QuEsTiOn}}}}}$

Kala invested Rs. 12,000 in a business. She will be paid an interest at 10 % per annum compounded annually. Find the Amount and C I credited against her name after 3 years.

${\huge{\pink{\underline{\underline{Given}}}}}$

Principal(p)=Rs.12000

Rate(r)=10%per annum

Time(n)=3 years

${\huge{\pink{\underline{\underline{To\ find}}}}}$

Amount=????

C.I.=?????

${\huge{\pink{\underline{\underline{Formula\ used}}}}}$

$Amount=p \times {(1 + \frac{r}{100} )}^{n} \\</p><p>Compound\ interest(C.I.)\\</p><p>=Amount -Principal$

${\huge{\pink{\underline{\underline{SoLuTiOn}}}}}$

$Amount=12000×{(1 + \frac{10}{100} )}^{3}\\</p><p>=>12000×{(\frac{110}{100} )}^{3}\\</p><p>=>12000×{(\frac{11}{10} )}^{3}\\</p><p>=>12000× \frac{11}{10} \times \frac{11}{10} \times \frac{11}{10} \\</p><p>=>12×11×11×11\\</p><p>=>Rs.15,972$

C.I.=Amount-Principal

=15,972-12000

=Rs.3,972

${\huge{\pink{\underline{\underline{Answer}}}}}$

Amount after 3 yrs.=Rs.15,972

C.I. after 3 yrs =Rs.3,972