A, B, C subscribe together Rs. $50,000$ for a business. A subscribes Rs. $4,000$ more than B and B Rs. $5,000$more than C. Out of a total profit of Rs. $35,000$, A receives:

Prakash, Sunil and Anil started a business jointly investing Rs. $11$ lakhs, Rs. $16.5$ lakhs and Rs. $8.25$ lakhs respectively. The profit earned by them in the business at the end of three years was Rs. $19.5$ lakhs. What will be the $50\%$ of Anil's share in the profit?

A pipe can fill a tank in $10 \mathrm{h}$, while an another pipe can empty it in $6 \mathrm{h}$. Find the time taken to empty the tank, when both the pipes are opened up simultaneously.

Three pipes A, B and C can fill a tank separately in $8, 10$ and $20 \mathrm{h}$, respectively. Find the time taken by all the three pipes to fillup the tank when the pipes are opened together.

One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in $36 \min$, the slower pipe along will be able to fill the tank in