Chapter 8, Problem 1RE

Evaluate each expression, where $\oplus$ and $\ominus$ indicate addition and subtraction, respectively, using a 12-hour clock.

$9\oplus 5$

To determine

To evaluate:

The given expression using a 12-hr clock.

Answer to Problem 1RE

Therefore, $9\oplus 5=2$

Explanation of Solution

Given:

  $9\oplus 5$

Calculation:

The given expression is,

  $9\oplus 5$

Count 5 hours from 9'o clock, we will get 2' o clock

Therefore, $9\oplus 5=2$

Conclusion:

Therefore, $9\oplus 5=2$