A) 8 yr
B) 7 yr
C) 5 yr
D) 6 yr
Correct Answer: C
Solution :
Let the principal = Rs. \[x\] \[\therefore \]Interest = Rs. \[\frac{2}{5}x\] Rate = 8% per annum \[\therefore \]Time \[=\frac{\text{Interest }\!\!\times\!\!\text{ 100}}{\text{Principal }\!\!\times\!\!\text{ Rate}}=\frac{\frac{2}{5}x\times 100}{x\times 8}=\frac{40}{8}=5\,\,yr\]You need to login to perform this action.
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