The rate of Interest on a sum of money is 11% p.a. for the first 3 years, 4% p.a. for the next 4 years, and 5% for the period beyond 7 years. If the S.I, Occured on the sum for the total period of 8 years is Rs. 540/-, the sum is Choose the correct answer.
A) 1,000  B) 2,000  C) 2,100  D) 2,250  E) 2,540
Explanation:   I1 = (P x 3 x 11)/100 = P/3   I2 = (P x 4 x 4)/100 = 4P/25   I3 = (P x 1 x 5)/100 = P/20   P/3 + 4P/25 + P/20 = 540   27P/50 = 540   P = 1000   1,000nswer: Option 1,000
<result>A</result>
The rate of Interest on a sum of money is 11% p.a. for the first 3 years, 4% p.a. for the next 4 years, and 5% for the period beyond 7 years. If the S.I, Occured on the sum for the total period of 8 years is Rs. 540/-, the sum is