A, B and C enter into partnership. A invests some money at the beginning, B invests double the amount after 6 months, and C invests thrice the amount after 8 months. If the annual gain be Rs.15000. A's share is? Choose the correct choice from the following.
A) 2999	B) 2778	C) 6000	D) 5000	E) 6612
x* 12 : 2x* 6: 3x* 4   1:1:1   1/3 * 15000= 
<gadget id="calculator">1/3 * 15000</gadget>
<output>5_000</output>
5000   Answer:5000
<result>D</result>
A, B and C enter into partnership. A invests some money at the beginning, B invests double the amount after 6 months, and C invests thrice the amount after 8 months. If the annual gain be Rs.15000. A's share is?