David started a business investing Rs. 70,000. Robert joined him after six months with an amount of Rs. 1,05,000 and Sagar joined them with Rs. 1.4 lakhs after another six months. The amount of profit earned should be distributed in what ratio amoung David, Robert and Sagar respectively, 3 years after David started the business?  Choose the correct option.
A) 12 : 10 : 16	B) 12 : 15 : 16	C) 15 : 12 : 16	D) 16 : 15 : 12	E) None
Sol.   David : Robert : Sagar = (70000 * 36) : (105000 * 30) : (140000 * 24)   = 12 : 15: 16.   Answer 12 : 15 : 16
<result>B</result>
David started a business investing Rs. 70,000. Robert joined him after six months with an amount of Rs. 1,05,000 and Sagar joined them with Rs. 1.4 lakhs after another six months. The amount of profit earned should be distributed in what ratio amoung David, Robert and Sagar respectively, 3 years after David started the business?