A watch which gains 5 seconds in 3 minutes was set right at 7 a.m. In the afternoon of the same day, when the watch indicated quarter past 4 o’clock, the true time is:
papay dey Answered question February 14, 2025
🕰️ Watch Time Correction 🤔
The watch gains 5 seconds in 3 minutes. To find the gain per hour:
5 seconds / 3 minutes = 5/3 seconds/minute
(5/3) × 60 minutes/hour = 100 seconds/hour
100 seconds/hour = 1 minute 40 seconds/hour
The watch was set right at 7 a.m. and indicates 4:15 p.m.
Time elapsed = 9 hours 15 minutes
Gain in 9 hours = 9 × 1 minute 40 seconds = 15 minutes
True time = Indicated time – Gain
= 4:15 p.m. – 15 minutes
= 4:00 p.m.
🎉 The true time is 4:00 p.m. 🕰️
papay dey Answered question February 14, 2025
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