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The sum of three consecutive numbers is 69. If the first number is n find the three Numbers ​

2 Answers

5 votes

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.

User Giannis
by
7.5k points
4 votes

Answer:

22

Explanation:

n + (n+1 )+( n+2) = 69

3n+3 =69

3n=66

n=66/3

n=22

User Ismet
by
7.1k points