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2 seconds per day. 60+18=78, 78 seconds/39 days = 2 seconds per day.
Well, isn't that just a happy little question! To find out how many seconds the watch lost per day, we can divide the total loss of 1 minute 18 seconds by the number of days. So, 78 seconds divided by 39 days equals 2 seconds lost per day. Just a tiny blip in the grand scheme of things!
Its 1 min = 60 sec + 12sec = 72/24 = 3 so answer is 3 SEC
To determine the time indicated on the watch at 6:30 pm, we first calculate the total number of seconds elapsed from 8:30 am to 6:30 pm, which is 10 hours or 600 minutes. Since the watch loses 2 seconds every 5 minutes, it loses 24 seconds every hour (2 seconds lost every 5 minutes * 12 sets of 5 minutes in an hour). Therefore, over 10 hours, the watch would lose 240 seconds or 4 minutes. Subtracting 4 minutes from 6:30 pm gives us the time indicated on the watch as 6:26 pm.
3 × 2 ÷ 24 = 6 ÷ 24 = 1/4 So the clock would lose one quarter of a minute, or fifteen seconds.