A) 8 years
B) 16 years
C) 12 years
D) 25 years
Correct Answer: D
Solution :
Let sum = x. Then, S.I. = x. \[\therefore \] Time \[=\frac{100\times S.I.}{Sum\times Rate}\] \[=\left( \frac{100\times x}{x\times 4} \right)\,years=25years\]
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