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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?

Solution

✅ Correct Option: 4

We need to calculate the time at which the watch covered 1 extra minute so that it shows the correct time.

Number of hours between 1 p.m on Tuesday and 1 p.m. on Thursday =48= 48 hours

Extra minutes covered by the watch →1\rightarrow 1 min(slow) + 22 mins(fast) =3= 3 mins

The watch covered 33 mins extra in 4848 hours.

Hence, the clock covered 11 min extra in 1616 hours.

The time after 1616 hours →5:00\rightarrow 5:00 am on Wednesday.

∴\therefore Option 4 is the correct option.

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