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Answer variants:
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Karthick borrowed a sum of \(₹\)3686 from a bank at 6\(\%\) per annum for one year.
 
i) Determine the interest should be paid at the end of one year.
 
The simple interest \((I) = ₹\)
 
ii) How much should he pay if he returned the borrowed money after 3 years.
 
 The amount to be paid at the end of 3 years \((A) = ₹\)
 
[Note: Round off the answer and choose the option from the given list.]