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    GK Olympiad Hindi Math Science English
    TEXTBOOK SOLUTIONS ASK & ANSWER My Q & A

    Find the individual weight of goat, hen & pig?

    Let the weight of hen be 'x'
    & the weight of goat be 'y'
    & the weight of pig be 'z'

    We have,
    x + y = 14  ...(i)
    x + z = 44  ...(ii)
    y + z = 50  ...(iii)
    x + y + z = ?

    Now,
    x + y = 14
    x = 14 - y

    Put the value of 'x' in eq.(ii)
    x + z = 44
    14 - y + z = 44
    z = 30 + y

    Put the value of 'z' in eq.(iii)
    y + z = 50
    y + 30 + y = 50
    2y = 20
    y = 10

    Put the value of 'y' in eq.(i)
    x + y = 14
    x + 10 = 14
    x = 4

    Put the value of 'x' in eq.(ii)
    x + z = 44
    4 + z = 44
    z = 40

    Therefore, x + y + z = 4 + 10 + 40
                                    = 54.   Ans.
     

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    54
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    Goat 10, hen 4, pig40
    • 20
    54
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    54
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