I want only hilight que ans Q.7. The average weight of 7 girls is 45 kg. If one more girl is included. the average becomes 43 kg. What is the weight of the included girl? Share with your friends Share 1 Shruti Tyagi answered this Dear student, Average weight of 7 girls=45 kg⇒Average weight of 7 girls=sum of weight of 7 girls7⇒45×7=sum of weight of 7 girls⇒sum of weight of 7 girls=315 kgWhen 1more girl is includedAverage of 8 girls=sum of weight of 8 girls8⇒43×8=sum of weight of 8 girls⇒sum of weight of 8 girls=344 kgThus, the weight of eigth girl=sum of weight of 8 girls-sum of weight of 7 girls=344 kg-315 kg⇒ The weight of eigth girl or included girl =29 kg Regards 0 View Full Answer