Arun, Kamal and Vinay invested Rs. 8000, Rs. 4000 and Rs. 8000 respectively in a business. Arun left after six months. If after eight months, there was a gain of Rs. 4005, then what will be the share of Kamal?
Pick:
A) Rs 870 B) Rs 880 C) Rs 890 D) Rs 900 E) None of these
Explanation:   Arun : Kamal : Vinay = (8,000 x 6) : (4,000 x 8) : (8,000 x 8)   = 48 : 32 : 64   = 3 : 2 : 4   Kamal's share=4005∗2/9=Rs890   Option Rs 890
<result>C</result>
Arun, Kamal and Vinay invested Rs. 8000, Rs. 4000 and Rs. 8000 respectively in a business. Arun left after six months. If after eight months, there was a gain of Rs. 4005, then what will be the share of Kamal?