Answer:
first number is 21
second number 23
third number 25.
Explanation:
The sum of three consecutive numbers is 69
Let the first number be n
the second number be 2 + n
the third number be 4 + n
n + (2 + n) + (4 + n) = 69
=n + n + n + 2 +4 = 69
=3n + 6 = 69
=3n = 69 - 6
=3n = 63
=3n/3 = 63/3
n = 21
therefore the first number n = 21
the second number 2 + n = 2 + 21 = 23.
the third number 4 + n = 4 + 21 = 25.