In a family of 8, the men eat on average 50 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)?
As men and women are equal so , there are 4 women and 4 men so, total consumption will be 50 × 4 = 200 (by men) and 35 × 4 = 140 (by women) Total consumption = 340 kg But after including a woman the average consumption for 9 people is given to be 45. So the total consumption will be 45 × 9 = 405 kg So, woman’s consumption will be = 405 – 340 = 65 kg
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