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There are 24 chickens and 36 rabbits.
60*2+96) (2+4)=(120+96) 6=216 6=36, 60-36=24, so there are 24 chickens and 36 rabbits.
Rabbit is an animal that likes to be active at night, rabbits are naturally very timid, very afraid of those wet places, rabbits have a very strong reproductive ability, and like to live next to the nest.
Rabbits, like other animals, are bound to die if they don't drink water. But since previously it was a vegetable that contained a lot of water, weeds.
These foods contain, will affect the health of the stomach and intestines, cause diarrhea, wet cage is easy to make rabbits sick, this is the reason why rabbits can not drink water, if dry artificial feed as the staple food, of course, you need to drink water.
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Suppose the chicken is a, then the rabbit is 60-a, the chicken is two legs, the rabbit is 4 legs, the chicken feet have a total of 2a, and the rabbit feet have 4 (60-a), according to the known conditions, list 2a+96=4 (60-a), solve a=24, from this, it can be seen that there are 24 chickens and 36 rabbits.
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Set up x chickens and rabbits.
1) x+y=96
2) 2x-4y=36
From Eq. (1) we get x=96-y, which is substituted by Eq. (2).
Obtain: 2(96-y)-4y=36
192-2y-4y=36
6y=192-36
6y=156
y=26 (only).
x=96-y=96-26=70 (only).
A: 70 chickens and 26 rabbits.
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Set: There are x chickens and y rabbits.
Then: x y=60......(1)
4y-2x=96……(2)
1)×2:2y+2x=120……(3)
3)+(2):6y=216
y=36 substitute y=36 into (1).
x+36=60
x=24A: There are 24 chickens and 36 rabbits.
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Solution: There are x chickens and 45-x rabbits.
2x-4(45-x)=6
2x-180
4x=66x=186
x=31 rabbits: 45-31=14 (pcs).
A: There are 31 chickens and 14 rabbits.
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The rabbit has four legs, the chicken has two legs, the chicken has 2 times the number of rabbits when the number of chickens has the same number of rabbits, the chickens have 6 more legs than the rabbit, that is, there are 3 chickens that have the excess, the remaining 45-3 = 42 chickens and rabbits, the chickens are 2 times the number of rabbits, the rabbits have 42 (1+2) = 14, and the chickens have 42-14 = 31.
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It is known that the feet of the rabbit are six fewer than the feet of the chicken, that is to say, after removing the three chickens, the number of the rabbit's feet and the chicken's feet are equal, but each rabbit has four feet, and the chicken only has two feet, only when the number of chickens is twice that of the rabbit, the rabbit's feet can be the same as the number of chickens' feet, according to the title, there are 45 in total, after subtracting 3 chickens, the remaining number of animals is 2 times that of the rabbit, so 6 divided by 2 to get 3, 45-3 = 42, 42 divided by 3 to get 14 for the number of rabbits, 14 * 2 + 3 = 31 for the number of chickensThe key to this question lies in the relationship between rabbit feet and chicken feet.
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Chickens and rabbits have fewer chicken feet than rabbit feet when they are only rising: 25x2=50.
The number of chickens did not decrease by one arguing, and the chicken feet were less than the rabbit's feet: 2 + 4 = 6.
80-50) 6 = 5 refers only to the old stove.
Number of chickens: 25 - 5 = 20.
Number of rabbits: 50 - 20 = 30.
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Summary. Thank you for your interest.
There are 24 chickens and 36 rabbits.
60*2+96) (2+4)=(120+96) 6=216 6=36, 60-36=24, so there are 24 chickens and 36 rabbits.
There are 60 chickens and rabbits, and there are 96 fewer chicken feet than rabbit feet
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Chickens and rabbits in the same cage.
What to ask. Thank you for your attention there are 24 chickens and 36 rabbits. 60*2+96) (2+4)=(120+96) 6=216 6=36, 60-36=24, so there are 24 chickens and 36 rabbits.
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Use the binary equation of Que Minpei to take the old, set the chicken has x, the rabbit has only y, and the binary equation system is listed.
x+y=120
2x-4y=66
Solving this system of equations yields x=69, y=51
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There are x chickens.
4×(180-x)-2x=42
720-6x=42
6x=720-42
x=678÷6
x=113.
There are rabbits: 100-113 = 67 rabbits.
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There are x chickens.
4×(80-x)-2x=116
320-6x=116
6x=320-116
x=204÷6
x=34.
There are rabbits = 80-34 = 46.
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If 200 mills are rabbits, rabbit feet: 200 4 = 800.
Chicken feet: 0.
Chicken feet are less than rabbit feet: 800 pieces.
Replace 1 rabbit with chicken swim number, and reduce rabbit feet by 4.
Increase the number of chicken feet by 2.
The difference between chicken feet and rabbit feet decreases: 4 + 2 = 6 feet.
In total, it needs to be reduced: 800-56 = 744 animals.
Chickens: with the first 744 6 = 124 pcs.
Rabbits: 200-124 = 76 pcs.
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Suppose all 100 chickens are chickens, then the total number of feet is 2 100 = 200 (chickens) The number of rabbit feet is 0, and there are 200 more chicken feet than rabbit feet, when in fact there are 16 fewer chicken feet than rabbit feet. Therefore, the difference between chicken feet and rabbit feet is more than known (200 + 16) = 216 (only), because the rabbit in it is replaced by a chicken. For each rabbit that is replaced with a chicken, the number of chickens will increase by 2 and the number of rabbit feet will decrease by 4. >>>More
Suppose the chicken and the rabbit understand the human language, first let them both put away one leg, at this time there are 40-14 = 26 legs left, and then let them put away the second leg, at this time there are 26-14 = 12 legs left, since both legs of the chicken are folded up and fall to the ground, the remaining legs are the legs of the standing rabbit, so the rabbit is 12 2 = 6, and the number of chickens is 14-6 = 8!
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