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    Question

    In a family of 12, the men eat on average 70 kg

    of food and women eat on an average 50 kg of food. The men and women are equal in number. A woman joined the family for dinner and the average consumption became 60 kg. How much did woman eat (in kgs)?
    A 115 Correct Answer Incorrect Answer
    B 85 Correct Answer Incorrect Answer
    C 70 Correct Answer Incorrect Answer
    D 60 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    As men and women are equal so , there are 6 women and 6 men so, total consumption will be 70 × 6 = 420 (by men) and 50 × 6 = 300 (by women)
    Total consumption = 720 kg
    But after including a woman the average consumption for 13 people is given to be 60.
    So the total consumption will be 60 × 13 = 780 kg
    So, woman’s consumption will be = 780 – 720 = 60 kg

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