5 years ago means of the family was 25 years what is the present mean age of the family
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Answered by
0
25+5/2
=30/2
=15
hope you are helped
=30/2
=15
hope you are helped
souvikkohli:
i think it is wrong
25+5/2 =>25+2.5 =>27.5
Answered by
0
If
Family = 4 members
then a+b+c+d/4=25 years
a+b+c+d=100 years
after five years
=a+5+b+5+c+5+d+5
=a+b+c+d+25
new mean =a+b+c+d+25/4
a+b+c+d=100
=100+25/4
=125/4
=31.25
its wrong
WHY
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