Question

A family with 6 members 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:
Select one:
0 39
31
O 30
O 43
Previous​

Answer 1

Answer:

hii

Step-by-step explanation:

total age of 6 members family= 6* 25= 150

total age of 9 members family = 9* 35= 315

the combine average of both families=150+ 315 / 6+9

                                                              = 465/15

                                                              = 31

hence 31 is the correct answer .