what is the avg of 1,2,3,.......25
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n(n+1)/2=sum of first n natural no.
so,
here, it would be 25(25+1)/2=25×13=325
so,
avg.=sum /total no. of terms=325/25=13
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so,
here, it would be 25(25+1)/2=25×13=325
so,
avg.=sum /total no. of terms=325/25=13
thanks to let me help u,
&
follow my YOUTUBE channel
if it helps u
tejnagpal:
here, n=25, so, avg=sum/n=(25)²/25=25 ok
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