Which of the numbers 11, 12, and 13 is a solution of 24 - x < 12?

Answer 1

Plug each number into the inequality and see if it is true:

1. For x = 11: 24 - 11 < 12
24 - 11 = 13
13 < 12
This statement is false, so 11 is not a solution of the inequality.

2. For x = 12: 24 - 12 < 12
24 - 12 = 12
12 < 12
This statement is false, so 12 is not a solution of the inequality.

3. For x = 13: 24 - 13 < 12
24 - 13 = 11
11 < 12
This statement is true, so 13 is a solution of the inequality.

Therefore, the only number that is a solution of the inequality is 13.