find the average of 11 consecutive odd nos a, b, c,d,e,f,g,hi,j,k. ?
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let 1st odd no. be = x
then nxt are following x+2, x+4, x+6.............x+20
so average= (x+x+2+x+4................+x+20)÷11
= 11x+110/11
=x+10
so in the term of a,b,c,d.......j,k
average= a+10
then nxt are following x+2, x+4, x+6.............x+20
so average= (x+x+2+x+4................+x+20)÷11
= 11x+110/11
=x+10
so in the term of a,b,c,d.......j,k
average= a+10
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