What is the greatest of 3 consecutive integers whose sum is 21 ? Choose the correct choice from the following options.
A) 6 B) 7 C) 8 D) 9 E) 5
The sum of three consecutive integers can be written as n + (n + 1) + (n + 2) = 3n + 3   If the sum is 24, we need to solve the equation 3n + 3 + (  + 1) + (  + 2)= 
<gadget id="calculator">+ (  + 1) + (  + 2)</gadget>
<output>3</output>
3n + 3   If the sum is 24, we need to solve the equation 3n + 3= 21;   =&gt; 3n = 18;   =&gt; n = 6   The greatest of the three numbers is therefore   6 + 2= 
<gadget id="calculator">  6 + 2</gadget>
<output>8</output>
8 Answer: 8
<result>C</result>
What is the greatest of 3 consecutive integers whose sum is 21 ?