Math, asked by chhayasharma111c, 28 days ago

A Sum of money is double in 8 years at r% rate of compound intrest per annum at the same rate. In how many years it will be 4 times of the sum?​

Answers

Answered by guravravi912
0

Step-by-step explanation:

A=P(1+

100

R

)

T

2x=x(1+

100

R

)

4

(1+

100

R

)=2

1/4

8x=x(1+

100

R

)

T

∵1+

100

R

=2

1/4

∴8=2

T/4

2

3

=2

T/4

4

T

=3

T=12years

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