# There is one milkman for every 15 animals

In a group of animals there are some cows, ox and 45 chickens. There is one milkman for every 15 animals. The number of ox in the group is double the number of cows. If the total number of heads (including milkman) is 186 less than the total number of feets; find out the total number of milkman present there?

(a) 6

(b) 8

(c) 10

(d) 12