A) 12 years
B) 15 years
C) 20 years
D) 30 years
Correct Answer: C
Solution :
Let sum \[=x\]. Then, S.I. = x and Time = 10 years. \[\therefore \] Rate \[=\left( \frac{100\times x}{x\times 10} \right)%=10%\] Now, sum = x, S.I. = 2x, Rate = 10% \[\therefore \] Time \[=\left( \frac{100\times 2x}{x\times 10} \right)\] years = 20 years.You need to login to perform this action.
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