A and B entered into a partnership investing Rs. 13,000 and Rs. 12,000 respectively.After 3 months, A withdrew Rs. 5000 while B invested Rs. 5000 more, After 3 more months, C joins the business with a capital of Rs. 21,000, The share of B exceeds that of C, out of a total profit of Rs. 26,400 after one year by? Choose the correct choice from the following answers:
A) 8340 B) 3600 C) 2787 D) 1287 E) 3627
A : B : C = (16000 * 3 + 11000 * 9) : (12000 * 3 + 17000 * 9) : (21000 * 6)   = 147 : 189 : 126   = 7 : 9 ; 6.   Difference of B and C's shares = Rs. ( 26400 * 9/22 - 26400 * 6/22 )   = Rs. 3600.   Answer: 3600
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A and B entered into a partnership investing Rs. 13,000 and Rs. 12,000 respectively.After 3 months, A withdrew Rs. 5000 while B invested Rs. 5000 more, After 3 more months, C joins the business with a capital of Rs. 21,000, The share of B exceeds that of C, out of a total profit of Rs. 26,400 after one year by?