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A clock in a Nagpur bank was set right at 7:00 a.m. It loses 3 minutes every hour and now reads as shown. What is the true time?

Competition practiceClocks
  • A11:59 a.m.
  • B12:12 p.m.
  • C12:00 noon
  • D11:30 a.m.

Step-by-Step Solution

The clock reads 11:45, so it has advanced 4 h 45 min = 285 min. It runs 57 clock-minutes per true hour, so the true time passed is min = 5 h. True time = 12:00 noon. (11:59 adds 3 min for each CLOCK hour; 11:30 subtracts the loss.)
Answer: C) 12:00 noon

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