Q293
In a pre 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
AnswerC.
15.4 kg
D.
15.6 kg
Answer: Option B
Solution
Answer: Option B
Solution:
According to the question,Average =
=
=
= 15.8 kg