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    Question

    Marginal product of labour first rises and then starts

    falling. This is due to:
    A the law of variable proportions Correct Answer Incorrect Answer
    B the law of marginal substitution Correct Answer Incorrect Answer
    C the law of variable substitution Correct Answer Incorrect Answer
    D the law of marginal proportions Correct Answer Incorrect Answer

    Solution

    The correct answer is A

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