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Male is 75kg
Female is 55kg
Average is 68kg
Male is 75-68= 7 kg more than average
Female is 68-55= 13kg less than the average
Male more weight is equal to female less weight
Males. Females
7kg 7kg + 7kg - 1kg
Such that
Males. Females
One unit Two units -1/7 unit
Add together should be 200 people
(3-1/7) units is 200
Each unit is 200/(3-1/7) = 70 people per unit
Since males is one unit, males is 70 people
Females is 130 people
Female is 55kg
Average is 68kg
Male is 75-68= 7 kg more than average
Female is 68-55= 13kg less than the average
Male more weight is equal to female less weight
Males. Females
7kg 7kg + 7kg - 1kg
Such that
Males. Females
One unit Two units -1/7 unit
Add together should be 200 people
(3-1/7) units is 200
Each unit is 200/(3-1/7) = 70 people per unit
Since males is one unit, males is 70 people
Females is 130 people