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    Question

    In a family of 10, the men eat on average 70kg of

    food and women eat on an average 45kg of food. The men and women are equal in number. A woman joined the family for dinner and the average consumption became 60. 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

    Solution

    As men and women are equal so , there are 5 women and 5 men so, total consumption will be 70 × 5 = 350 (by men) and 45 × 5 = 225 (by women)
    Total consumption = 575 kg
    But after including a woman the average consumption for 11 people is given to be 60.
    So the total consumption will be 60 × 11 = 660 kg
    So, woman’s consumption will be = 660 – 575 = 85 kg

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