A) \[31%\]
B) \[3.125%\]
C) \[0.3%\]
D) \[1%\]
Correct Answer: B
Solution :
Remaining quantity \[N={{N}_{0}}{{\left( \frac{1}{2} \right)}^{n}}\] \[={{N}_{0}}{{\left( \frac{1}{2} \right)}^{5}}=\frac{{{N}_{0}}}{32}\] \[=\frac{100}{32}=3.125%\]
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