Here is the answer to GMAT Practice Question #19
Answer: C
Explanation:
If the probability that the animal is a cow is 11/16, then there is a total of 16 horses and cows, 11 of which are cows. Therefore, there are 5 horses (16-11), so the ratio of horses to cows would be 5/11.
The answer and explanation to GMAT Practice Question #19 was written by Integrated Learning, a company that provides professional and private one on one tutoring services.

