There are chickens angd rabbits in a cage and the number of number of rabbits is two times of the number of chickens. They have 210 legs in total. How

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There are chickens angd rabbits in a cage and the number of number of rabbits is two times of the number of chickens. They have 210 legs in total. How many rabbit are there

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  1. Đáp án:

    Explanation of the solution steps:
      Call the rabbit number:x(con)(x>0)
    => The number of rabbit feet is: 2x(foot)
    => The number of chickens is: 2x(chickens)
    => The number of chicken feet is: x/2.2=x(foot)
    Since there are a total of 210 chicken and rabbit legs combined, the number of rabbits is:
    2x+x=210
    ⇒3x=210
    ⇒x=210/3=70
    So the rabbits are: 70 (rabit)

    Giải thích các bước giải:

     

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