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      Question

      In a family of 14, the men eat on average 65 kg

      of food and women eat on an average 40 kg of food. The men and women are equal in number. A woman joined the family for dinner and the average consumption became 55. How much did woman eat (in kgs)?
      A 90 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 7 women and 7 men so, total consumption will be 65 × 7 = 455 (by men) and 40 × 7 = 280 (by women)
      Total consumption = 735 kg
      But after including a woman the average consumption for 15 people is given to be 55.
      So the total consumption will be 55 × 15 = 825 kg
      So, woman’s consumption will be = 825 – 735 = 90 kg

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