24 छात्रों के वजन का औसत 4kg है यदि उसमे अध्यापक का वजन भी शामिल कर लिया जाये तो औसत 400 ग्राम बढ़ जाता है, अध्यापक का वजन क्या है?
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28. kg. 400 gram. please follw me
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the av of 24 student is 4kg
the sum of 24 student is (24×4)kg=96kg
if the included teacher weight,
the av of student with teacher is (4.400)kg
the sum-------------------------------(25×4.400)=110kg
the weight of teacher is =110_96 =14kgans
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