Question

the compound interest on ₹43200 at 10% per annum for a certain period of time is ₹9072. find the time in years​

Answer 1

Answer:

P=Rs.1800

R=10%

C.I.=Rs.378

A=P+C.I=Rs.(1800+378)=Rs.2178

We know,

A=P(1+

100

R

)

n

⇒ 2178=1800(1+

100

10

)

n

⇒

1800

2178

=(1+

10

1

)

n

⇒ 1.21=(

10

11

)

n

⇒ (1.1)

2

=(1.1)

n

By comparing we get,

⇒ n=2 years

Answer 2

Step-by-step explanation:

the compound interest on rs 43200 at 10% per annum for a certain period of time is rs9072 find the time in years