Question

If the average of the first seven consecutive positive integer 'a' and that of the first nine positive

Answer 1

let the seven consecutive positive integers are x, x + 1, x + 2, x + 3, x + 4, x + 5, x + 6 

x+x+1+x+2+x+3+x+4+x+5+x+67=26x+x+1+x+2+x+3+x+4+x+5+x+67=26

7x + 21 = 182 

7x= 161 

x = 23