A began a business with Rs. 85, 000. He was joined afterwards by B with Rs. 42, 500. For how much period does B join, if the profits at the end of the year are divided in the ratio of 3: 1?

A, B and C enter into a partnership. They invest Rs. 40, 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 year?

A and B entered into a partnership investing Rs. 16, 000 and Rs. 12, 000 respectively. After 3 months, A withdraw 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: