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    Question

    The mean weight of 24 men is 45

    kg, while the mean weight of 18 women is 40 kg. Calculate the combined average weight of all the men and women together, rounding the result to two decimal places.
    A 42.86 kg Correct Answer Incorrect Answer
    B 52.86 kg Correct Answer Incorrect Answer
    C 32.86 kg Correct Answer Incorrect Answer
    D None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Sum of weights of each men = 24 × 45 = 1,080 kg Sum of weights of each women = 18 × 40 = 720 kg Required average weight = (1,080 + 720) ÷ (24 + 18) = (1,800/42) ~ 42.86 kg

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