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?

Simran started a software business by investing Rs. 50, 000. After six months, Nanda joined her with a capital of Rs. 80, 000. After 3 years, they earned a profit of Rs. 24, 500. What was simran’s share in the profit?

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?