Rs 3000 is divided into two parts such that one part is put out at 3% and the other at 5%. If the annual interest earned from both the investments be Rs 144, find the first part. Pick:	A) s 400	B) s 280	C) s 300	D) s 350	E) s 310
Explanation :   Average rate = (144/3000)*100= 
<gadget id="calculator">(144/3000)*100</gadget>
<output>24/5 = around 4.8</output>
4.8   Ratio= 2:18   So, first part = (2/20)*3000= 
<gadget id="calculator">(2/20)*3000</gadget>
<output>300</output>
Rs 300.   Answer : s 300
<result>C</result>
Rs 3000 is divided into two parts such that one part is put out at 3% and the other at 5%. If the annual interest earned from both the investments be Rs 144, find the first part.