Question

5 years ago, the average age of a family of five persons

Q: 5 years ago, the average age of a family of five persons was 30 years. In between these 5 years the

Sumofthepresentageofthefamilyexcludinggirl5x305175yearsSumofthepresentageofthefamilyincludinggirl6x30180yearsPresentageofthegirl1801755years

was 30 years. In between these 5 years the family adopted a girl. Now at present the average age of the family is same as it was 5 years ago. Find the present age of the girl.

A 5 years

B 6 years

C 2 years

D 8 years

E None of these

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Question

5 years ago, the average age of a family of five persons

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