CBSE Class 10 Answered
The mean weight of 150 students in a class is 60 kg. The mean weight of boys is 70 kg and that of girls is 55 kg. Find the number of boys and girls.
Asked by Topperlearning User | 06 Nov, 2017, 12:58: PM
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Answered by | 06 Nov, 2017, 02:58: PM
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