A. 8 years Show
B. 10 years C. 12 years D. 14 years Solution(By Examveda Team) $$\eqalign{ & {\text{Let principal = P}} \cr & \therefore {\text{amount = 3P}} \cr & {\text{Interest = 3P}} - {\text{P}} \cr & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{ = 2P}} \cr & {\text{According to the question,}} \cr & {\text{2P = }}\frac{{{\text{P}} \times {\text{R}} \times
{\text{20}}}}{{100}} \cr & \Rightarrow {\text{R = 10% }} \cr} $$
Post your comments here:Name *: Email : (optional) » Your comments will be displayed only after manual approval. How long will it take for an amount to become 5 times of itself at 15% per annum simple interest?Calculation: Let the sum of money be P. Now, Let the time period be t. ∴ The time is 25 years.
How many years will the sum becomes 5 times itself?A sum becomes 5 times of itself in 3 years. at compound interest (interest is compounded annually). Let the sum becomes 125 times in n years. ∴ In 9 years it will become 125 times.
How long would take for a sum of money to become 5 times of itself at 20 %; per month simple rate of interest?Let after t years, the sum will become 5 times of itself . Rate = 20 % p.a. So, SI = Rs 5x- x = Rs 4x . = 5/4 years .
What should be the interest rate for an amount to become 5 times of itself at simple interest in 50 years?Rate=P×T100×SI=15100×4x=15400=26.
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