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    Question

    In a family of 10, the men eat on average 40 kg of food and women eat on an average 30 kg of food. The men and women are equal in number. A woman joined the family for dinner and the average consumption became 45. How much did woman eat (in kgs)?

    A 901 Correct Answer Incorrect Answer
    B 145 Correct Answer Incorrect Answer
    C 170 Correct Answer Incorrect Answer
    D 165 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    As men and women are equal so , there are 5 women and 5 men so, total consumption will be 40 × 5 = 200 (by men) and 30 × 5 = 150 (by women)
    Total consumption = 350 kg
    But after including a woman the average consumption for 11 people is given to be 45.
    So the total consumption will be 45 × 11 = 495 kg
    So, woman’s consumption will be = 495 – 350 = 145 kg

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