Exactly 5/6 of the cows on a certain farm have cow bells. If exactly half of the cows with bells are
brown, what is the minimum possible number of cows on the ranch?
Answer: The trick to this question is that the number of cows cannot be fractional; it must be an integer.
The number of brown cows is: (1/2) × (5/6) × the number of cows.
12 is the smallest positive integer that yields another integer when multiplied by 5/12, so it is the minimum possible number of cows.
Correct Answer: Choice C
Veritas Prep GMAT Course Options
Option 1: Classroom
Option 2: One on One
Option 3: Self-Study
Enroll Today (Limited Seats) »