Question

In how many years will rupees 4000 amount to rupees 0.5 at 5% per annum compounded annually.​

Answer 1

Answer:

We have,

CI=Rs.630.50,P=Rs.4000,R=5%,T=?

We know that

A=P+CI=P(1+

100

R

)

T

or, 4000+630.50=4000(1+

100

5

)

T

or, 4630.50=4000(1+

100

5

)

T

or, (1+

20

1

)

T

=1.157625

or, (1.05)

T

=1.157625

or, (1.05)

T

=(1.05)

3

or, T=3 years

Answer 2

Answer:

We have,

CI=Rs.630.50,P=Rs.4000,R=5%,T=?

We know that

A=P+CI=P(1+ 100R ) To r, 4000+630.50=4000(1+ 1005 )

To r, 4630.50=4000(1+ 1005)

To r, (1+ 201)

T =1.157625or, (1.05) T =1.157625or, (1.05) T =(1.05)

3or, T=3 years

Step-by-step explanation:

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