Using clock arithmetic, what is 6 + 7 = ?
A)11
B)12
C)1
D)2

Name: Using clock arithmetic, what is 6 + 7 = ? A)11 B)12 C)1 D)2
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Quizplus · Accepted Answer

In clock arithmetic, we only use numbers from 0-11 (or 12 if we are using a 12-hour clock). Adding 6 hours to the current time of, say, 5 o'clock, would give us 11 o'clock. Adding 7 more hours would "loop around" back to 6 o'clock. Therefore, 6 + 7 = 1 in clock arithmetic.

Using Clock Arithmetic, What Is 6 + 7 =