Can anyone please help me solve this Question from
Quantitaive Section in GRE

Ques : A lion can eat a sheep in 2 hrs, wolf in 3 hrs,
and a dog in 6 hours. In what time would they eat a
sheep together?

Answer options :
a. 60 mins b. 75 minutes c. 52 minutes d. 55 minutes

The right answer is 52 minutes

Regards
Nandu