9)The mean weight of 10 students in a class is 50 kg. When the weight – InterviewSolution

1.	9)The mean weight of 10 students in a class is 50 kg. When the weight of the teacher is added. the mean weight goes up by 1 kg. Find the weight of the teacher.
Answer» MEAN of 10 student = 50 = 50×10/10mean of 10 student +teacher = 5150×10+x/11 = 51500+x = 51×11=561x=61so WEIGHT of teacher is 61

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