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A watch is 1 minute slow at 1 p.m. on ...

A watch is 1 minute slow at 1 p.m. on Tuesday and 2 minutes fast at 1 p.m. on Thursday. When did it show the correct time? (a) 1.00 a.m. on Wednesday     (b) 5.00 a.m. on Wednesday (c) 1.00 p.m. on Wednesday     (d) 5.00 p.m. on Wednesday

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