a family with 6 numbers has an average age of 25 while a family of 9 has an average age of 35 .the combine average of both families will be
Answers
Answered by
3
Answer:
93/12
Step-by-step explanation:
6 members avg=25
total sum of observation=25*6=150
9 members avg=35
total sum of observation=35*9=315
total sum of observation=150+315=465
total observation=35+25=60
465/60=93/12
Answered by
2
Step-by-step explanation:
Average of 6 members = 25
Sum = 25×6 = 150
Average of 9 members = 35
Sum = 35×9 = 315
total Sum = 150+315 = 465
total average = 25+35 = 60
now combine average of both families will be equal to = Total Sum/total average
= 465/60 = 93/12
Similar questions