Question
In a family of 8, the men eat on average 72kg of
food and women eat on an average 50kg of food. The men and women are equal in number. A woman joined the family for dinner and the average consumption became 67. How much did woman eat (in kgs)?Solution
As men and women are equal so , there are 4 women and 4 men so, total consumption will be 72×4 = 288(by men) and 50×4 = 200(by women)
Total consumption = 488.
But after including a woman the average consumption for 9 people is given to be 67.
So the total consumption will be 67×9 = 603.
So, woman’s consumption will be = 603 – 488 = 115
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