The mean weight of 34 students of a school is 42 kg. If the weight of – McqOptions

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1.	The mean weight of 34 students of a school is 42 kg. If the weight of the teacher be included , the mean rises by 400 g. Find the weight of the teacher (in Kg.)
A.	66
B.	56
C.	55
D.	57
Answer» C. 55

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