How many times do the hands of a clock coincide in a day?
(a)20
(b)21
(c)22
(d)24
Answer
Answer (as printed): C
Explanation
The hands of a clock coincide 11 times in every 12 hours (Since between 11 and 1, the coincide only once, i.e. at 12 o'clock). $$\text { ∴ The hands coincide } 22 \text { times in a day. }$$
Explanation as extracted from the printed page; notation may be imperfect.