Question

What three consecutive integers have a sum of 21?

Answer 1

n+n+1+n+2=21

3n=18

n=6

Three numbers=6,7,8

Answer 2

let no. are  x, x+1 , x+2

A/Q, x+x+1+x+2= 21

⇒ 3 x = 18

∴ x = 6

∴ no. are  6 , 7 and 8