1. Jayant started a business, investing Rs. 6000. Six months later madhu joined him, investing Rs. 4000, If they made a profit of Rs. 5200 at the end of the year, how much must be the share of Madhu?

2. A and B invest in business in the ratio 3 :2. If the 5% of the total profit goes to charity and A?s share is Rs. 855, total profit is:

3. A, B and c invest Rs. 2000, Rs.3000 and Rs. 4000 in a business, After one year, A removed his money but B and C continued for one more year. If the net profit after 2 years be Rs.3200, them A?s share in the Profit is: