Question

    In a family of 4, the men eat on average 40 kg of

    food and women eat on an average 35 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 20 Correct Answer Incorrect Answer
    B 42 Correct Answer Incorrect Answer
    C 75 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 2 women and 2 men so, total consumption will be 40 × 2 = 80 (by men) and 35 × 2 = 70 (by women)
    Total consumption = 150 kg
    But after including a woman the average consumption for 5 people is given to be 45.
    So the total consumption will be 45 × 5 = 225 kg
    So, woman’s consumption will be = 225 – 150 = 75 kg

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