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There are 5n chickens and 20-3n rabbits, for n = 1,2,3,4,5 or 6.

Q: How many chickens and rabbits are there if there are 100 heads and animal feet all together?

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7 chickens and 11 Rabbits - 7 X 2 (feet per chicken) plus 11 X 4 (feet per rabbit) equals 58

Let's denote the number of chickens as C and the number of rabbits as R. We can write two equations based on the given information: C + R = 72 (total number of heads) and 2C + 4R = 200 (total number of feet). Solving these equations simultaneously, we find there are 50 chickens and 22 rabbits in the cage.

Suppose there are C chickens and R rabbits. Then Feet: 2*C + 4*R = 140 . . . . . (I) Heads: C + R = 50 . . . . . . . . (II) Equation (I) - Equation (II) gives: 2*C + 4*R - 2*C - 2*R = 140 - 2*50 or 2*R = 40 so that R = 20 and then, by (II), C + 20 = 50 so that C = 30. Answer: 20 rabbits and 30 chickens. This assumes, of course, that there are no headless chickens running around!

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Suppose there are x chickens and y cows Then heads => x + y = 64 And Legs => 2x + 3y = 147 2*Heads: 2x +2y = 128 Subtract from Legs: 19 = y Substitute in Heads: x = 45 Answer: 45 chickens.

There are 42 chickens in the farm.

On a farm there are chickens and three-legged-cows. There are total of 49 heads and 130 legs. How many chickens are on the farm?

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They have their eyes on the sides of their heads, unlike we humans, who have our pointing forwards. As a typical prey animal, a rabbits eye position helps it to see all around without having to move. It can stay alert and watch its entire surroundings, without potentially giving its position to predators.

7 cows and 11 chickens. Cows have 4 legs. Chickens have 2 legs. (4 legs)(7 cows) + (2 legs)(11 chickens) = 50 legs. 7 cow heads = 11 chicken heads = 18 heads.