A, B and C entered in a partnership business. They invested their capitals in the ratio of $\frac{4}{3} : \frac{5}{2} : \frac{6}{5}$. After 5 months, B invested 40% more than what he had invested earlier. If the total profit at the end of one year was Rs 50,550, then how much profit did A earn?

Ram and Ankur make a partnership. Ram invests Rs. 35,000 for 6 months and Ankur invests some money for 7 months. Ankur claims $\frac{4}{7}$ of total profit. Then the money invested by Ankur is :

In what ratio must sugar at ₹12 per kg be mixed with sugar at ₹20 per kg so that the mixture is worth ₹15 per kg?

A man rows 8 km upstream in 4 hours and 16 km downstream in 4 hours . What is the speed of the current?

A swimmer's speed in swimming pool is 6 km/hr. He swims between two points in a river and returns back to the starting point. He took 24 minutes more to cover the distance upstream than downstream. If the speed of the stream is 4 km/hr, then the distance between two points is:

The set of all positive integers less than 50 forming the equivalence class of 8 for modulo 11 is :

If a person goes 20 kilometre downstream in 5 hours and returns against the stream in 15 hours, then the speed of the stream in kilometre per hour is :