Question

There are 132 animals on Sandra’s farm. Some of the animals are chickens and others are cows. In total, there are 326 animal legs on the farm. How many chickens are on the farm?

Answer 1

• 101 chickens

Explanation:

Chickens = x, Cows = y

Sum of animals:

• x + y = 132

Sum of legs:

• 2x + 4y = 326

Solve by elimination, multiply the first equation by 4 and subtract the second equation:

• 4x + 4y - 2x - 4y = 4*132 - 326
• 2x = 528 - 326
• 2x = 202
• x = 101