Suresh borrowed some money at the rate of 6% p.a. for the first two 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 11 years is Rs.8160, how much money did he borrow? Select:
A) s.8500
B) s.6000
C) s.8500
D) s.9000
E) s.7000
using the formula S.I=P*T*R/100   (x*6*2/100)+(x*9*5/100)+(x*13*3/100)=8160   x=8500   i.e money borrowed is Rs.8500   ANSWER:s.8500
<result>C</result>
Suresh borrowed some money at the rate of 6% p.a. for the first two 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 11 years is Rs.8160, how much money did he borrow?