the mean weight of a class of 35 student is 45 kg. if the weight of teacher include the mean weight increase by 2. find the weight of teacher.
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Answer:
117 kg
Step-by-step explanation:
No.of students= 35
Mean of weight of students=45 kg
Sum of weight of students = 35 ×45=1575kg
we know that-if the weight of teacher is included than the mean increase by 2 then
New mean including teacher= 45+2=47
so to find weight of the teacher= 36×47 - 35×45
=1692-1575
=117 kg
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