Question

The average weight of 24 students in section A of a class is 58 Kg, whereas the average weight of 26 students in section B of the same class is 60.5 Kg. Find out the average weight of all the 50 students of the class.

• A. 57.4 Kg
• B. 59.3 Kg
• C. 58.9 Kg
• D. 59.7 Kg
• E. None of these

Answer 1

The correct option is B 59.3 Kg

Average weight of 24 students of section A = 58 Kg
Total weight of 24 students of section $A=58\times 24=1392Kg$
Average weight of 26 students of section B = 60.5 Kg
Total weight of 26 students of section $B=60.5\times 26=1573Kg$
Total weight of 50 students = $(1392+1573)Kg=2965Kg$
Average weight of the students in the class $=\frac{2965}{50}=59.3kg$