In an examination, the average marks of 60 girls is 15 and t

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In an examination, the average marks of 60 girls is 15 and the average marks of 40 boys is 30. The average marks of the group in which the boys and girls are taken together is:

[SSC CHSL 26th May 2022 Shift-3 With Answers]

A

15

B

21

C

24

D

60

EXPLANATION

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