allerySome dials have an inner ring beside the 1 to 12 ring. What number sits with 3?
A13
B15
C23
D27
Answer & Solution
Correct answer: B. 15
1. The inner ring pairs 1 to 11 with 13 to 23.
2. Each pair differs by 12, so 3 pairs with 3 + 12 = 15.
3. 13 belongs to 1, and 23 belongs to 11.
_Source: Wikipedia, 12-hour clock, History and use_
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