Question

The sum of 3 consecutive odd numbr Is 57. Find the number

Answer 1

(2n+1)+(2n+3)+(2n+5)=57
6n+9=57
6n=48
n=8
17,19,21

Answer 2

x plus 1 plus xplus3 plus x plus5 -- 57 then ,3 x plus 9 - 57 so, x--16, hence no. is 17, 19, 21