Nitin borrowed some money at the rate of 6% p.a. for the first three years, 9% p.a.for the next five years and 13% p.a.for the period beyond eight years If the total interest paid by him at the end of eleven years is 8160, how much money did he borrow?
Choose the correct choice from the following options.
A) 8000  B) 10,000  C) 12,000  D) Data inadequate  E) None of these
Let the sum be x. Then,   (x×6×3/100)+(x×9×5/100)+(x×13×/)=8160   ⇒ 18x + 45x + 39x = (8160 × 100)   ⇒ 102x = 816000   ⇒ x = 8000.   8000nswer 8000
<result>A</result>
Nitin borrowed some money at the rate of 6% p.a. for the first three years, 9% p.a.for the next five years and 13% p.a.for the period beyond eight years If the total interest paid by him at the end of eleven years is 8160, how much money did he borrow?