write in proper way
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thus,age of third brother is 18 years
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brillientno1:
pls
this answer is worng
then what is the answer
18 years
if it is 18 years the average become 17.5
hey @brillientno1..you divided it by 2...you should divide it by 3..then answer will be right..
yes
sorry
don't mind
i uploaded new answer
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hey mate here's your answer..
let the age of 3rd brother be x..
then according to formula:
average = sum of all observations/Number of observations
15=15+12+x/3
15×3=27+x
45-27=x
x=18
hence,third brother's age is 18 years..
Hope this helps..
please mark as brainliest..
let the age of 3rd brother be x..
then according to formula:
average = sum of all observations/Number of observations
15=15+12+x/3
15×3=27+x
45-27=x
x=18
hence,third brother's age is 18 years..
Hope this helps..
please mark as brainliest..
hey please mark it as brainlist answer
oh..
i am perfectly fine
tenth
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