there are 11 cojecutive observatios..if the avg of first 7 is 17 then what is the sum of least and highest no.???
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take first value as x.
so
(x+x+1+x+2+x+3+x+4+x+5+x+6)/7=17
x=14
then d least number x=14
and d highest x+10=14+10=28
and there sum=38
so
(x+x+1+x+2+x+3+x+4+x+5+x+6)/7=17
x=14
then d least number x=14
and d highest x+10=14+10=28
and there sum=38
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