Tag Archives: clock

Digital Clock

The display on a digital clock reads . What will the clock display twenty-seven digit changes later? Source: NCTM Mathematics Teacher, October 2006 Solution The figure shows there are four digit changes from to corresponding to four minute intervals. Thus, … Continue reading

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Fast Clock Slow Clock

When minutes elapse on a correct clock, minutes register on clock (fast), and only minutes register on clock (slow). If later in the day, clock reads and clock reads , what was the correct time when the two clocks were … Continue reading

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