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

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How many chickens and rabbits are there if there are 16 heads and 38 feet?

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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.


A farmer has a certain amount of chickens and rabbits Altogether these animals have 140 feet and 50 heads How many rabbits and chickens does the farmer have?

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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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.


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