$A, B, C$ enter into a partnership with shares in the ratio $\frac{7}{2}: \frac{4}{3}: \frac{6}{5}.$ After $4 \text{ months}$,$A$ increases his share by $50\%.$ If the total profit at the end of one year is $₹ 21600,$ then $B$'s share in the profit is (in $₹$):

Mahesh,Suresh,and Ganesh entered into a partnership business. Mahesh invested ₹ $16,000$ for $9 \text{ months}$. Suresh invested ₹ $12,000$ for $6 \text{ months}$,and Ganesh invested ₹ $8,000$ for $12 \text{ months}$. At the end of a year,there was a profit of ₹ $26,000$. Find out the share of Suresh in the profit (in ₹).

Niki,Nisha and Anu formed a partnership with investments of ₹ $75,000$,₹ $60,000$ and ₹ $40,000$ respectively. After $3$ years of operation,the partnership earned a net profit of ₹ $26,250$. What was the share of Anu in the profit (in ₹)?

Arun,Kamal,and Vinay invested ₹ $8000$,₹ $4000$,and ₹ $8000$ respectively in a business. Arun left after six months. If after eight months,there was a gain of ₹ $4005$,then what will be the share of Kamal (in ₹)?

$S, T$ and $U$ start a business and their capitals are in the ratio $3: 4: 6$. At the end,they received the profit in the ratio of $1: 2: 3$. What will be the respective ratio of the time periods for which they contributed their capitals?

Anju and Brijesh enter into a partnership with their capitals in the ratio of $5:9$. At the end of $8$ months,Anju withdraws her capital. If they receive their share of profit in the ratio of $4:9$,find out how long Brijesh's capital was invested in the business (in months).