A farm has 2100 animals. Out of which 1/7 are hens,6/4 are cows and goat and rest are horses ,pigs and other animals. a. Find how many hens are there in the farm? b. Find how many cows are there, if there are 250 goats. c. Find what fraction of horses, pigs and other animals are in the farm. Find their number also. ​