Multiple choice

Munish's watch loses 6 minutes per day. On Monday morning at 11 o'clock, it is 45 minutes ahead of the actual time. If Atul sets his watch according to Munish's watch on Friday evening at 5 o'clock, then Atul's watch will be

  1. 19.5 min behind the time

  2. 25 min ahead of the actual time

  3. 19.5 min ahead of actual time

  4. correct
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Munish's watch loses 6 min/day. From Monday 11 AM to Friday 5 PM is 4 days + 6 hours = 102 hours. Total loss = (6/24) * 102 = 25.5 minutes. It was 45 min ahead, so it is now 45 - 25.5 = 19.5 min ahead of actual time.

AI explanation

Munish's watch loses 6 minutes per day, which is 0.25 minutes (or 15 seconds) per hour. On Monday at 11 a.m., the watch is 45 minutes ahead. From Monday 11 a.m. to Friday 5 p.m., exactly 102 hours pass. Over 102 hours, the watch loses 102 times 0.25 = 25.5 minutes. Subtracting this 25.5 minutes loss from the initial 45 minute gain leaves the watch 19.5 minutes ahead of the actual time.

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