It is a safety procedure in industries that lock dangerous machines and ensure that there is no operation until maintenance or repairs have been made.
C? Least useful information, and includes an opinion, both uncomforting and personal.
We are looking for the value of the second integer, so let's mark it as X.
Then three consecutive integers are : (x-1) , x , (x+1)
The sum of the first and the third integers (X-1) + (X+1)
Five less than three times the second integer 3X - 5
Now we can write an equation and solve it for X
(X-1)+(X+1)= 3X - 5 simplifying left part
2X = 3X -5 subtract 2X from both sides
0 = X-5
X=5
SO THREE CONSECUTIVE INTEGERS ARE 4, 5, 6
