Partnership - General Questions

A starts a business with Rs. 8,000. After 7 months B joins with Rs. 7,000. Out of a total annual profit of Rs. 13,100, what is A's share?

A starts a business with Rs. 7,000. After 3 months B joins with Rs. 4,000. Out of a total annual profit of Rs. 3,000, what is A's share?

A starts a business with Rs. 4,000. After 3 months B joins with Rs. 5,000. Out of a total annual profit of Rs. 6,200, what is A's share?

A, B and C invest in the ratio 6 : 4 : 4 for the same period. If the total profit is Rs. 25,200, what is C's share?

A and B start a business with Rs. 7,000 and Rs. 14,000. At the end of the year the profit is Rs. 31,500. What is B's share?