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The average income of 10 persons in a family is 10000 one new was added in a family and the average income becomes 11200 what is the income of the newly added members |
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Answer» Answer: Explanation: if 10000 is AVERAGE income of 10 members then average income of ONE member will be 1000 . if one member is ADDED to them then 11200-10000= 1200. there are 10 members so 1200×10= 12000 HENCE PROVED |
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