WBCS.LIVE practice question

In a group of cows and hens, the number of legs are 14 more than twice the number of heads. How many cows are there?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. 7
  2. 12
  3. 5
  4. 10

Correct answer and explanation

Correct answer: 7

Explanation: āœ… Correct Answer: A. 7 šŸ“š Explanation: Let the number of cows be C and hens be H. Total legs L = 4C + 2H. Total heads He = C + H. The problem states L = 2He + 14. Substituting the variables: 4C + 2H = 2(C + H) + 14. This simplifies to 4C + 2H = 2C + 2H + 14, which means 2C = 14. Therefore, the number of cows is 14/2 = 7.