162k views
5 votes
The sum of three consecutive numbers is twelve less than six times the lowest number. What are the three numbers?

User Laketuna
by
6.7k points

2 Answers

5 votes

Answer:

3,4,5

Explanation:

User Matt Hidinger
by
7.0k points
4 votes
Let one of the number be x.
The other two numbers are x+1 and x+2.

The sum of three consecutive numbers is twelve less than six times the lowest number.
⇒ x + (x+1) + (x+2) - 12 = 6x
⇒ x + x +1 + x + 2 - 12 = 6x
⇒ 3x + 9 = 6x
⇒ 3x = 9
⇒ x = 3

Find the numbers:
x = 3
x + 1 = 4
x + 2 = 5

Answer : The numbers are 3, 4 and 5



User Evgeny Tanhilevich
by
7.0k points