Q. How many times in 24 h the hands of a clock are in straight line but opposition in directions?
Explanation by: Madhu
The hands of a clock are in the same straight line (but opposite in direction) 11 times in every 12 h, because between 5 and 7 they point in opposite direction at 6 O' clock only. Therefore, in a day (24 h) the hands points in the opposite direction (2 × 11) = 22 times.
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