In an examination average marks obtained by the girls of a class is 85 and the a

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In an examination average marks obtained by the girls of a class is 85 and the average marks obtained by the boys of the same class is 87. If the girls and boys are in the ratio 4 : 5, average marks of the whole class (approx.) is closest to :

Options:

A . 86.5

B . 85.9

C . 86.4

D . 86.1

Answer: Option D

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