Question

The sum of 3 consecutive odd number is 69.
what is the third number in this sequence?​

Answer 1

21

Step-by-step explanation:

let x+4 third number

the number are 21,23,25

X+(x+2)+(x+4)=69

3x+6=69

3x=63

X=21

Answer 2

Let the first, second and third consecutive odd numbers be x, x+2 and x+4 respectively

According to the question

x+x+2+x+4=69

3x+6=69

3x=69-6

3x=63

x=63/3

x=21

First number =x=21

Second number x+2=21+2=23

Third number =x+4=21+4=25

Therefore, the third number in this sequence is 25