Question

23) In a school, the average weight of the 40 students in class VII was found to be 45 kg, while
that of 30 students in class VIII was found to be 52 kg. What is the average weight of an
70 students?
14) Two groups of students wrote a test. The average score of 25 students of the 1st group was
120, while that of the 35 students in the second group was 126. What is the average score
of both groups?
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Answer 1

Answer:

answer should be 48

Step-by-step explanation:

(40 ×45 + 30×52 ) ÷ 70

= 3360/70

= 48 kg