25. Four milkmen rented a pasture. A grazed 18 cows for 4 months: B 25 cows for 2 months, c 28 cows for 5 months and D 21 cows for 3 months. If A� s share of rent is Rs. 360, the total rent of the field is:

26. In a partnership, A invests (1/6) of the capital for (1/6) of the time, B invests (1/3) of the capital for (1/3) of the time and C, the rest of the capital for the whole time. Out of a profit of Rs. 4600, B�s share is:

27. A and B entered into a partnership investing Rs. 16000 and RS, 12000 respectively. After 3 months, A withdrew Rs. 5000 while b invested Rs. 5000 more After 3 more months C joins the business with a capital of Rs. 21000. The share of B exceeds that of C, out of a total profit of Rs. 26400 after one year, by