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Class 9th CHAPTER 14
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£fixi=40+90+120+450+180+210+160=1250
£fixi=40+90+120+450+180+210+160=1250£fi=50
£fixi=40+90+120+450+180+210+160=1250£fi=50mean=1250/50
£fixi=40+90+120+450+180+210+160=1250£fi=50mean=1250/50=25 Answer
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