In a group of cows and hens, the number of legs are 16 more than twice the number of heads.
In a group of cows and hens, the number of legs are 16 more than twice the number of heads. The number of cows is
Answer/Solution
8
Steps/Work
Explanation:
Let the number of cows be x and the number of hens be y.
Then, 4x + 2y = 2 (x + y) + 16
4x + 2y = 2x + 2y + 16
2x = 16
x = 8.
Answer: B
Let the number of cows be x and the number of hens be y.
Then, 4x + 2y = 2 (x + y) + 16
4x + 2y = 2x + 2y + 16
2x = 16
x = 8.
Answer: B