A) 20 years
B) 16 years
C) 12 years
D) 10 years
Correct Answer: A
Solution :
(a)\[{{A}_{1}}=2P=P+\frac{\Pr \,t}{100}\] \[\Rightarrow \]\[P=\frac{P.r.10}{100}\] \[\Rightarrow \]\[r=10\] Again \[{{A}_{2}}=3P=P+\frac{\Pr {{t}_{2}}}{100}\] \[2=\frac{10\times {{t}_{2}}}{100}\] \[\Rightarrow \]\[{{t}_{2}}=20\]You need to login to perform this action.
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