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the mean weight of 4 students of a class is 32 kg if the weight of 3 students is 28 kg 36 kg 20 kg find the weight of fourth student. |
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Answer» Answer: TOTAL weight of 24 students =24×35=840kg Total weight of 25 persons with TEACHER =25×35.4=885kg. ∴ Weight of teacher =(885−840)kg=45kg. please breliant KOMAL |
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