A and B start a business jointly. A invests Rs.16000 for 8 months and B remains in the business for 4 months. Out of the total profit B claims 2/7th share. How much money is contributed by B?  Select the correct option:
A) Rs.10000	B) Rs.12800	C) Rs.6000	D) Rs.8000	E) Rs.13000
16*8: x*4 = 5:2   x = 12.8 =&gt; Rs.12800   ANSWER:Rs.12800
<result>B</result>
A and B start a business jointly. A invests Rs.16000 for 8 months and B remains in the business for 4 months. Out of the total profit B claims 2/7th share. How much money is contributed by B?