There are a number of chickens and rabbits, they have a total of 15 heads and 48 legs, and how many

Updated on physical education 2024-05-13
13 answers
  1. Anonymous users2024-02-10

    First of all, you may be misty, an animal has one head, and having 15 heads is 15 animals. But if you really get the question wrong, the correct question might be "how many chickens and rabbits are there?" If so, you can refer to the following method.

    Rabbits have 4 legs and chickens have 2 legs.

    Let's say it's all rabbits, and there are 15 and 4 legs. 15 4 = 60 (only) If it is all rabbits, then there are 60-48 more feet. 60-48 = 12 (only) If you replace a rabbit with a chicken, there are 4-2 fewer legs.

    4-2=2 (only) Therefore, for each rabbit that is replaced by a chicken, there are two fewer extra feet.

    Divide the extra number of legs by 2, which is the number of chickens. 12 2 = 6 (chickens) 6 chickens and rabbits 15-6 = 9 (only)

    6 (only).

  2. Anonymous users2024-02-09

    The simplest, suppose that both the chicken and the rabbit raise one foot first, that is, count with the feet - the head counts, the chicken has one leg, the rabbit has three legs, and then the chicken and the rabbit lift one more foot, the chicken sits down, and then the foot counts - the head counts, and there are two legs left of the rabbit, at this time, the remaining number of feet divided by 2 is the number of rabbits.

  3. Anonymous users2024-02-08

    Let's say it's all rabbits.

    9 rabbits, 6 chickens.

  4. Anonymous users2024-02-07

    Suppose chicken x rabbit y then.

    x+y=15

    2x+4y=48

    It can be known that x=6 y=9

  5. Anonymous users2024-02-06

    The number of rabbits is: (48-15*2) 2=9 (only) (after removing the two feet of each rabbit, the remaining feet are the two feet of all rabbits).

    The number of chickens is 15-9=6 (only).

    Through thick and thin, learn to be in the same boat and have something to say.

  6. Anonymous users2024-02-05

    88 heads, that is, chickens and Lushan rabbits, a total of 88.

    Rabbit 4 legs Chicken 2 feet If two or no animals are subtracted from the total number of feet in the early group, then 244-88*2=68 are left.

    At this point, all the chickens have their feet deducted, and all the rabbits have 2 feet left, so there are 68 2 = 34 rabbits.

    The number of chickens is 54.

  7. Anonymous users2024-02-04

    There are a number of chickens and rabbits, they have a total of 88 heads, 244 legs, and how many chickens and rabbits each have.

    Assuming that all rabbits are rabbits, then the chickens have: (88 4-244) (4-2), = 352-244) 2, = 108 2, = 54 (only), then the rabbits are: 88-54 = 34 (Qin is not only messy beam), A: There are 54 chickens and 34 rabbits

  8. Anonymous users2024-02-03

    Let's say all 88 are chickens.

    88x2=176pcs.

    244-176) (4-2) = 34.

    88-34 = 54 pcs.

    A: 34 rabbits and 54 chickens.

  9. Anonymous users2024-02-02

    If there are x chickens, there will be (88-x) rabbits.

    2x + 4 (88-x) = 246

    2x+352-4x=246

    2x=-106

    x=5388-x=88-53=35

    A: There are 53 chickens and 35 rabbits.

  10. Anonymous users2024-02-01

    Solution: Suppose all rabbits have a total of 88 4 = 352 feet, which is 352-244 = 108 more than the known 244 feet, because 1 rabbit has 4-2 = 2 more legs than 1 chicken, so the chicken has: 108 2 = 54, so the problem can be solved

    Assuming it's all rabbits, chickens have:

    88 4-244) (4-2),(352-244) 2,108 2,54 (only), then rabbits have: 88-54 = 34 (only), answer: 54 chickens, rabbits have 34 Qing Lun Xuan.

    1, rabbit (244-88x2) (Tongyin 4-2) = 68 2 = 34 chickens 88-34 = 54, 2, chicken (4 88-244) (4-2) 54 rabbits 88-54 = 34, 2, x+y = 882x + 4y = 244

    x=54 y=34,2, if there are x chickens, then there are 88-x rabbits, and the column formula is. 2x+(88-x)*4=224, x=64, then there are 88-64=24 rabbits. ,1,

  11. Anonymous users2024-01-31

    Suppose Tangerine Zheng is all rabbits, and the round grip is a chicken

    88 4-244) (4-2), Pi Liang.

    352-244) 2,108 2,54 (only), then rabbits have: 88-54=34 (only), answer: 54 chickens and 34 rabbits

  12. Anonymous users2024-01-30

    Chickens and rabbits in the same cage: chicken head + rabbit head total number.

    Chicken 2 + Rabbit 4 total feet.

    If the chicken is x, then there are 88-x rabbits, according to the title:

    2x+4(88-x)=244pcs.

    Solve the equation to get x=54 (only) 88-x=34 (only) Answer: There are 54 chickens and 34 rabbits.

  13. Anonymous users2024-01-29

    54 chickens and 34 rabbits.

    Set chickens and rabbits respectively.

    x+y=88

    2x+4y=244

    Solution x=54, y=34

Related questions
10 answers2024-05-13

Assuming that all 15 are chickens, then there are 2x15=30 feet, which is 48-30=18 fewer than the actual number. >>>More

24 answers2024-05-13

I'll offer a clever approach here:

If you are lucky enough to see an unusual situation: all the chickens in the cage are standing on one foot, and all the rabbits are standing on two feet. At this time, the foot touching the ground is only half of the 200 feet, that is, 100. >>>More

13 answers2024-05-13

According to the first sentence, if there are x chickens and y rabbits, then there are x+y=100, chickens have two legs, and rabbits have four legs, according to the second sentence, there are 2x+4y=248, and 2x+4y=248, then 2(x+2y)=248 >>>More

15 answers2024-05-13

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!

17 answers2024-05-13

There are x groups for chickens and y groups for ducks.

x+y=11 >>>More