<PRE><B>Question 224052</B>
The units digit of the sum of three consecutive integers is 8.
 What is the units digit of the least of these integer?
:
Three consecutive integers. x, (x+1), (x+2)
:
Let s = sum of the integers
:
Write an equation:
s = x + (x+1) + (x+2)
s = 3x + 3
Substitute for x until the unit digit of s = 8
A few minutes you will have
x = 5 is the least digit
s = 5 + 6 + 7
s = 18
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