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A clock gains 10 minutes in 24 hours. It is set right at 8 a.m. on Monday. What will it show at 8 a.m. on the following Monday ?

  • A.8:50 a.m.
  • B.9:00 a.m.
  • C.9:10 a.m.
  • D.9:20 a.m.

Answer: D

Correct answer: 9:10 a.m.

From one Monday to the next is exactly 7 days.

\[\text{Total gain} = 7 \times 10 = 70 \text{ minutes} = 1 \text{ hour } 10 \text{ minutes}\]

Running ahead by that amount, the clock shows 9:10 a.m. when the true time is 8 a.m.

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