Rakesh started a book stall with an investment of ₹ 18000 and Rohan joined him later with an investment of ₹ 15000.If the ratio of their profits at the end of the year is 12:5, then after how many months did Rohan join Rakesh ?

A starts a business with X 9000 and B joins him after 6 months with an investment of X 45000. What will be the ratio of the profits of A and B at the end of year ?

X starts a business with X 30000 and Y joins him after 3 months with X 120000. Find the ratio of their profits at the end of the year.

A starts a business with ? 2000 and B joins him after 3 months with ? 8000. Find the ratio of their profits at the end of the year.

A starts a business with X 4000 and B joins him after 3 months with X 16000. Find the ratio of their profits at the end of year.

Rakesh set up a factory with a capital of ₹ 90000 and Ramesh joined him later with an investment of ₹ 50000. The total profit earned at the end of the year was ₹ 68000. Find when Ramesh joined Rakesh as the partner, if Rakesh's share in the profit is ₹ 48000.

A starts a business with Rs. 4000 and B joins him after 3 months with Rs. 16000. Find the ratio of their profits at the end of year.

Rakesh set up a factory with a capital of Rs 90.000 Ramesh joined him later with an investment of Rs 50,000. The total price earned at the end of the year was Rs 68,000 .find when Ramesh joined Rakesh as the partner if Rakesh's share in the profit is Rs 48,000