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Questions  >>  Olympiad-Math  >>  Class 7  >>  Data Handling
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Archana's age is twice that of Alisha, Alisha's age is twice that of Sara and Sara's age is twice that of Balvinder. If the average of the ages of Archana, Alisha, Sara and Balvinder is 30 years, then what is the present age of Sara.


( A ) 17 years
( B ) 15 years
( C ) 16 years
( D ) 18 years

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