The rate of Interest on a sum of money is 2% 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 Pick:
A) 2,200
B) 2,000
C) 2,100
D) 2,250
E) 2,540
Explanation:   I1 = (P x 3 x 2)/100 = 3P/50   I2 = (P x 4 x 4)/100 = 4P/25   I3 = (P x 1 x 5)/100 = P/20   3P/50 + 4P/25 + P/20 = 540   The L.C.M of 50, 25, 20 = 100   (6P + 16P + 5P)/100 = 540   27P/100 = 540   27P = 54000   P = 54000/27= 
<gadget id="calculator">54000/27</gadget>
<output>2_000</output>
2000   Answer: Option 2,000
<result>B</result>
The rate of Interest on a sum of money is 2% 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