63.--THE STOP-WATCH.

From Amusements in Mathematics by Henry Ernest Dudeney.

The time indicated on the watch was 5+5/11 min. past 9, when the second hand would be at 27+3/11 sec. The next time the hands would be similar distances apart would be 54+6/11 min. past 2, when the second hand would be at 32+8/11 sec. But you need only hold the watch (or our previous illustration of it) in front of a mirror, when you will see the second time reflected in it! Of course, when reflected, you will read XI as I, X as II, and so on.

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63.--THE STOP-WATCH.: Amusements in Mathematics by Henry Ernest Dudeney | amphi