In a prep school, the average weight of 30 girls in a class among 50 students is 16 kg and that of the remaining students is 15.5 kg. What is the average weight of all the students in the class ?

In a prep school, the average weight of 30 girls in a class among 50 s

1.	In a prep school, the average weight of 30 girls in a class among 50 students is 16 kg and that of the remaining students is 15.5 kg. What is the average weight of all the students in the class ?
A.	15.2 kg.
B.	15.8 kg.
C.	15.4 kg.
D.	15.6 kg.
Answer» C. 15.4 kg.

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In a prep school, the average weight of 30 girls in a class among 50 students is 16 kg and that of the remaining students is 15.5 kg. What is the average weight of all the students in the class ?

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