The rate at which the sum becomes nine times of itself in 45 years at S.I. will be

Options
- 15%
- 16%
- 20%
- 25%

CORRECT ANSWER : 20%

Discussion Board
Question is wrong

Question is wrong it should be 10 times
Let the principal be x
After 45 years
----> Amount = 10x
----> Amount = Principal + SI
----> 10x = x + (x*R*45)/100
----> (10x-x)*100 =x*R*45
----> 900x = 45x *R
---->R= 900/45
-----> R = 20
therefore R = 20%

Vicky Sahu 06-25-2021 02:38 AM

Si online question

Pls explain all online test

Ranjan 08-2-2018 11:03 PM

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