semily74
semily74
22.02.2021 • 
Mathematics

Suppose the average weight of 9 persons are 50 Kg. the average weight of 5 persons is 45 kg, whereas the average weight of last 5 persons is 55 kg then what is the weight of 5 th person will be 1) 45 kg
2)47.5 kg
3)50 Kg
4)52.5kg​

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