Question

The cost of grass for 20 cows and 30 sheep for 30 days
is Rs 720. If the 30 sheep eat double the grass eaten by
the 20 cows, then what is the cost of grass eaten by
20 sheep in 15 days?​

Answer 1

very difficult....

Step-by-step explanation:

what is your age?

Answer 2

Answer:

Rs. 160

Step-by-step explanation:

30 sheep eat 2 units of grass.

20 cows eat 1 unit of grass.

2u+1u = 720.

=> u = 240.

30 sheep eat -> 2u = 480uunits grass.

So, 20 sheep will eat -> 480*20/30 = 320 units of grass in 30 days.

Hence, in 15 days 20 sheep eat 320/2 = 160 units of grass.