Chapter 9, Problem 86RE

To determine

To find: the number of ways a computer can generate the sum 12 using two randomly selected distinct integers from 1 through 14.

Answer to Problem 86RE

  $11$

Explanation of Solution

All possible pairs of two distinct integers from 1 through 14 whose sum is 12 is shown in the table below:

First Number	Second Number
1	11
2	10
3	9
4	8
5	7
6	6
7	5
8	4
9	3
10	2
11	1

Hence, there are in total 11 such ways in which a sum 12 can be obtained.