A, B and C enter into a partnership. They invest Rs. 70,000, Rs. 80,000 and Rs. 1,20,000 respectively. At the end of the first year, B withdraws Rs. 40,000, while at the end of the second year, C withdraws Rs. 80,000. In what ratio will the profit be shared at the end of 3 years?	Choose the correct choice from the following options
A) 21 : 32 : 4
B) 21 : 26 : 4
C) 21: 12 : 1
D) 21: 16 : 28
E) none
Sol.   A : B : C = (40000 * 36) : (80000 * 12 + 40000 * 24)   : (120000 * 24 + 40000 * 12) =252 : 192 : 336 = 21: 16 : 28   Answer 21: 16 : 28
<result>D</result>
A, B and C enter into a partnership. They invest Rs. 70,000, Rs. 80,000 and Rs. 1,20,000 respectively. At the end of the first year, B withdraws Rs. 40,000, while at the end of the second year, C withdraws Rs. 80,000. In what ratio will the profit be shared at the end of 3 years?