Math, asked by Rottweiler, 1 year ago

The average of 40 results 50 and the average of next 60 results 55 . The average of all results will be equal to :

Answers

Answered by kirtiprasanjenpchfhd

(40*50+60*55)/40+60
=(2000+3300)/100
=53
is the answer...
as you know that..
average is equal to total points divided by total results...
so at first I calculate total point and divide it by total result...

kirtiprasanjenpchfhd: yaa...why not

kirtiprasanjenpchfhd: ask

Rottweiler: The average of 30 results 40 and 40 results 30 respectively. The average of all results will be equal to :

kirtiprasanjenpchfhd: (30*40+40*30)/30+40

kirtiprasanjenpchfhd: (1200+1200)/70

kirtiprasanjenpchfhd: 240/7

Rottweiler: What is the meaning of that star between 30 and 40 and 40 and 30

kirtiprasanjenpchfhd: = 34.28

kirtiprasanjenpchfhd: multiplied

kirtiprasanjenpchfhd: into

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