Question 10
A “symmetric time pair” consists of two times whose hour hands and minute hands are mirror images across the vertical axis of the clock, as illustrated by the dashed lines. For example, 10:45 and 1:15 form a pair, as do 12:55 and 11:05. How many pairs within one day are exactly 5 hours 30 minutes apart?
Practice convention: count pairs of distinct time instants within one midnight-to-midnight 24-hour day. The same clock displays occurring at different times of day count as different pairs.
Practice convention: count pairs of distinct time instants within one midnight-to-midnight 24-hour day. The same clock displays occurring at different times of day count as different pairs.