Clocks and Time
Algebra
Level
2
You purchase a clock at your local thrift shop not knowing that it had a factory defect. Each minute of the clock is only 50 seconds long. You set the clock on April 19, 2015 at 00:00. Later on you notice that the clock shows April 20, 2015 at 00:00. What is the real date and time?
April 20, 2015 at 02:00
April 19, 2015 at 16:00
April 19, 2015 at 20:00
April 19, 2015 at 18:00
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Each minute on this clock is 1/6 of a minute short. 24 x 60 x 1/6 = 240 mins = 4 hours Four hours less than midnight is 20:00 the day before