there are 60 girl in a class whose average age is 14 there are 40 girls in another class whose average age is 15 years what
is the average age of both the class taken together
Answers
Answered by
0
sum of age of 60 girls 14*60=840years
sum of age of 40 girls 15*40=600years
Total age=1440years
total girls=40+60=100
average age of both class= 1440/100=14.4years
sum of age of 40 girls 15*40=600years
Total age=1440years
total girls=40+60=100
average age of both class= 1440/100=14.4years
Similar questions