8. A farmer has some ducks and pigs in his farm. A visitor counted 16 hoads and 50
legs for those animals. How many ducks and pigs are there in the farm?

A. 7 ducks and 9 pigs

C. 10 ducks and 6 pigs

B.7 pigs and 9 ducks

D. 10 pigs and 6 ducks​