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Questions  >>  Olympiad-Math  >>  Class 6  >>  Math  >>  Percentages
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Q)

The average of 3, 7, 8 and x is 5 and the average of 2, 19, 7, x and y is 10. what is the value of y?


( A ) 20
( B ) 25
( C ) 17
( D ) 14

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