The average weight of 29 students in a class is 54 kg . Five students of average weight 52.8 kg leave the class and 6 students of average weight 55 kg - Quantitative Aptitude MCQ Competitive Exam 2026 | ExamTest.live

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The average weight of 29 students in a class is 54 kg . Five students of average weight 52.8 kg leave the class and 6 students of average weight 55 kg join the class, what is the average weight (in kg) of students now?

Solution & Step-by-step Explanation

Initial total weight of 29 students = 29 \times 54 = 1566 kg .Total weight of 5 students who left = 5 \times 52.8 = 264 kg .Total weight of 6 students who joined = 6 \times 55 = 330 kg .New total number of students = 29 - 5 + 6 = 30 .New total weight = 1566 - 264 + 330 = 1632 kg .New average weight: New Average = \frac{1632}{30} = 54.4 kg

Try it yourself before checking the explanation above.

The average weight of 29 students in a class is 54 kg . Five students of average weight 52.8 kg leave the class and 6 students of average weight 55 kg join the class, what is the average weight (in kg) of students now?

53.9

54.2

53.8

54.4

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