average weight of 20 boys and 15 girls in a class is 29 kg and 22 kg respectively.find the average weight of all the students in the class.

• totl wght of boy's=20*29=580
  simrlly girls=15*22
  totl ave=(totlboywght+tolgirlwght)/tole no of boys and gils
  26 kg
• 8 years agoHelpfull: Yes(22) No(0)
• average weight of 20 boys are = 20*29=580
  average weight of 15 girls are= 15*22=330
  The total average weight of all students =total average weight /number of students
  =( 580+330)/(15+20)
  =910/35
  =26 is answere
• 8 years agoHelpfull: Yes(8) No(0)
• 910/35=26 but this Question is not of elitmus level
  
• 8 years agoHelpfull: Yes(4) No(0)
• sum of weights of boys/no of boys= average weight
  sum of weight for boys=20*29=580
  sum of weight for girls=15*22
  avergaw weight of all students=(580+330)/35=26ans
• 8 years agoHelpfull: Yes(2) No(0)
• (29+22)/2=25.5
• 8 years agoHelpfull: Yes(1) No(14)
• What is the probability of finding a four digit perfect square number .. Solution please
• 8 years agoHelpfull: Yes(0) No(0)
• ans is 26kg
• 8 years agoHelpfull: Yes(0) No(0)
• Total weight of 20 boys = 20*29=580
  Total weight of 15 girls= 15*22=330
  Average weight=(Total weight of boys+Total weight of girls)/Total student
  (580+330)/35
  =26Ans
• 8 years agoHelpfull: Yes(0) No(0)