A) 57.4 kg
B) 59.3 kg
C) 58.9 kg
D) 59.7 kg
Correct Answer: B
Solution :
Average weight of 24 students of section A = 58 kg Total weight of 24 students of section A \[=58\times 24=1392\,kg\] Average weight of 26 students of section B = 60.5 kg Total weight of 26 students of section B \[=60.5\times 26\] \[=1573\,kg\] Total weight of 50 students = (1392 + 1573) kg = 2965 kg Average weight of students in the class \[=\frac{2065}{50}59.3\,kg\]
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