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Animals and Wheels

1. Anne went to visit her uncle Farmer John for a weekend. On Saturday morning, she went to

the barn and saw pigs and chickens. She counted 17 heads and 56 legs. How many pigs

does Farmer John have? How many chickens?

Respuesta :

Answer:

11 pigs.

6 chickens.

Step-by-step explanation:

Pigs have 4 legs while chickens have 2 legs. Also, pigs have just 1 head and the same for chickens.

Let pigs be X and let chickens be Y

For heads,

X + Y = 17

For legs,

4X + 2Y = 56

Solving both equations simultaneously,

4X + 2(17 - X) = 56

2X = 56 - 34

2X = 22

X = 11

So, Y = 17 - 11

= 6

There are 11 pigs and 6 chickens.

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