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**Solution: **

#### 100 animals 100 dollars riddle answer

**Answer: **5 cows =$50,
1 pig =$3.
94 ducks =$47

**Solution: **

**Answer : 5 cows =$50**

1 pig =$3

94 ducks =$47

**Explanation:**

let number of cows be x

let the number of pigs be y

then the number of chickens = 100-x-y

10x + 3y + .5(100-x-y) < 100

times 2

20x + 6y + 100 – x – y < 200

19x + 5y < 100

consider 19x + 5y = 100

But , what is the question?

Do you want the different combinations you can buy? Do we want as close as possible to $100?

Remember x and y have to be positive integers.

so x has to be between 1 and 5

form a table with columns

x, y, and 100-x-y, and cost

1 16 83 99.50

1 15 82 86.00

…

5 1 94 100

x=5, y=1 is the only combination that will use all the money

He should buy 5 cows, 1 pig and 94 chickens

5+1+94 = 100

$50 + $3 + $47 = $100

**Answer : 5 cows =$50**

1 pig =$3

94 ducks =$47

1 pig =$3

94 ducks =$47

**Explanation:**

let number of cows be x

let the number of pigs be y

then the number of chickens = 100-x-y

10x + 3y + .5(100-x-y) < 100

times 2

20x + 6y + 100 – x – y < 200

19x + 5y < 100

consider 19x + 5y = 100

But , what is the question?

Do you want the different combinations you can buy? Do we want as close as possible to $100?

Remember x and y have to be positive integers.

so x has to be between 1 and 5

form a table with columns

x, y, and 100-x-y, and cost

1 16 83 99.50

1 15 82 86.00

…

5 1 94 100

x=5, y=1 is the only combination that will use all the money

He should buy 5 cows, 1 pig and 94 chickens

5+1+94 = 100

$50 + $3 + $47 = $100

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