A borrowed some money at the rate of 5% p.a. for the first four years, 8% p.a.for the next 8 years and 10% p.a.for the period beyond 12 years If the total interest paid by him at the end of 14 years is 41600, how much money did he borrow?	Pick:
A) 40,000
B) 50,000
C) 62,000
D) 45,000
E) None of these
Let the sum be x. Then,   (x×4×5/100)+(x×8×8/100)+(x×2x10/100)=41600   ⇒ 20x + 64x + 20x = (41600 × 100)   ⇒ 104x = 4160000   ⇒ x = 40000.   40,000nswer 40,000
<result>A</result>
A borrowed some money at the rate of 5% p.a. for the first four years, 8% p.a.for the next 8 years and 10% p.a.for the period beyond 12 years If the total interest paid by him at the end of 14 years is 41600, how much money did he borrow?