Skip to content

Next time the clock hands coincide after noon

Question

The hour and minute hands of a clock overlap exactly at 12:0012{:}00 noon. How many hours later will they next overlap? Give a fraction if needed.

Short answer

12/1112/11 hours (about 1:05:271{:}05{:}27). The minute hand gains 330∘330^\circ per hour on the hour hand, and it must gain a full 360∘360^\circ, so t=360330=1211t=\tfrac{360}{330}=\tfrac{12}{11}.

Adapted from QuantQuestions.io; question and answer rewritten by SelfMadeQuant.com.

See the hint and the full worked solution in the question bank (free account).

Open the worked solution