x-------x-------x------ ...
notice there are only two time intervals between the first and third strike
so the time between strikes is 15 seconds
Thus at 12:00 we would have 11 time intervals, and it would take
11(15) or 165 seconds
At 3h00 a clock strikes the bell 3 times. The time between first and last strike is 30 seconds. How long does it take to strike the bell at 12h00?
1 answer