NIFT UG 2020 Question Paper with solutions

Question : 18 of 150

Marks: +1, -0

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,

then average marks of the whole class (approx) is closest to

86.5
86.1
85.9
86.4

Validate

Solution:

Average of whole class

=\;{85 × 4+87 × 5}/{9}

=\;{340+435}/{9}=86.1

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