Question

The cost of 2 cows and 4 chickens is Rs. 60. The cost of 1 cow and 1 chicken is Rs. 16. What is the cost of one chicken?

• A. $20$
• B. $30$
• C. $14$
• D. $35$

Answer 1

Answer: (C)

$14$

Let the cost of one cow $=x$ and chicken $=y$
Then form an equation as,
$2x+4y=60$ ----- (1)
$x+y=16$ ----- (2)
Multiplying the equation (2) by 2 and then subtract the equations,
$2x+4y=60$
$2x+2y=32$
____________
$2y=28$
$y=\frac{28}{2}$
$y=14$
Therefore, the cost of one chicken is Rs. 14.