Question

    In a family of 8, the men eat on average 70 kg of

    food and women eat on an average 51 kg of food. The men and women are equal in number. A woman joined the family for dinner and the average consumption became 61. How much did woman eat (in kgs)?
    A 90 Correct Answer Incorrect Answer
    B 55 Correct Answer Incorrect Answer
    C 70 Correct Answer Incorrect Answer
    D 65 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    As men and women are equal so , there are 4 women and 4 men so, total consumption will be 70 × 4 = 280 (by men) and 51 × 4 = 204 (by women)
    Total consumption = 484 kg
    But after including a woman the average consumption for 9 people is given to be 61.
    So the total consumption will be 61 × 9 = 549 kg
    So, woman’s consumption will be = 549 – 484 = 65 kg

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