There are 3 numbers that are consecutive integers. Together they have a sum of 18. What is the largest of the 3 numbers?
Let N = smallest number.
N + 1 = next number.
N + 2 = largest number.
N + (N + 1) + (N + 2) = 18
3N + 3 = 18
3N = 
<gadget id="calculator">3*5</gadget>
<output>15</output>
15.
N = 
<gadget id="calculator">5</gadget>
<output>5</output>
5.
The largest number is 
<gadget id="calculator">7</gadget>
<output>7</output>
7.

<result>7</result>