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 Author: questioner [ Sun Dec 11, 2011 5:21 pm ] Post subject: GMAT Logic If the time is currently 1:30 pm, what time will it be in exactly 647 hours?A. 12:30 amB. 1:30 amC. 12:30 pmD. 2:30 pmE. 10:30 pm(C) If we divide 647 by 24, not arriving at a decimal, but rather keeping the answer in terms of an integer and the remainder, this number will represent the number of days and hours later that 647 hours is:647/24 = 26, remainder 23.Therefore, 647 hours from now is the same as 26 days and 23 hours from now.The time will be exactly 1 hour earlier in the day, so it will be 12:30 pm.The correct answer is choice (C).---------It is currently 1:30 pm, which is the same time as 13:30 am. Add 23 hours and one gets 12:30am. Answer A.

 Author: Gennadiy [ Sun Dec 11, 2011 5:27 pm ] Post subject: Re: t.2, qt.20: logic, arithmetics Quote:It is currently 1:30 pm, which is the same time as 13:30 am. Add 23 hours and one gets 12:30am. Answer A.If you convert the question into 24-hour clock system, it will be:If the time is currently 13:30, what time will it be in exactly 647 hours?A. 00:30B. 1:30C. 12:30D. 14:30E. 22:30One hour before 13:30 is 12:30 (which is the same as 23 hours after 13:30). The correct answer is C.Note, the 24-hour clock system does not have "am" and "pm" abbreviations.

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