Three Texas drovers met on a highway and began to dicker as follows:
Hank says to Jim: "I'll give you six pigs for a hoss; then you'll have twice
as many critters in your drove as I will have in mine."
Duke says to Hank: I'll give you fourteen sheep for a hoss; then you'll have
three times as many critters as I."
Jim says to Duke: I'll give you four cows for a hoss; then you'll have six
times as many critters as I."
From these interesting facts, can you tell how many animals were in each
of the three droves?