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This clock was set right at 9 a.m. and gains 3 minutes every hour. What will it show at the true time of 1 p.m.?

Competition practiceClocks
  • A1:12
  • B12:48
  • C1:03
  • D1:36

Step-by-Step Solution

From 9 a.m. to 1 p.m. is 4 hours, so the clock gains minutes and shows 1:12. (12:48 subtracts the gain; 1:03 adds only one hour's gain.)
Answer: A) 1:12

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