THE ELECTRIC CLOCK PROBLEM:

bhaarath · 05-06-08, 12:50 PM

There is a power failure at 11.00 pm on 1^st May 2007 and the power resumes only at 11.30 pm on the same day.

An electric clock, which was functioning normally until the power failure, starts up as soon as the power supply restarts, but resumes backwards at half the usual speed.

At what time on the following day will the electric clock show the same time as the actual correct time?

yoyorikee · 19-06-08, 05:21 PM

I think it is 11.45 of next the day

SKVenkatesan · 27-06-08, 04:36 PM

@ same day eve 7.10 the clock will show correct time
clock "resumes from 11.00 am and backwards at half the usual speed". so after 8 hr 20 min (half 4 hr 10 mins) actual time is 7.10 pm and in clock 7.10 am

girish979 · 16-02-09, 08:53 PM

wrong
starts @ 10:30 Pm nxt day

manikanta.c.v · 14-04-09, 12:45 PM

May 3rd 9.30 pm

Prasun MCA · 08-09-09, 04:29 PM

Next day 9:30 PM am I right?

05-06-08, 12:50 PM	#1 (permalink)
bhaarath Junior Member Join Date: Jun 2008 Posts: 1 Thanks: 0 Thanked 1 Time in 1 Post Rep Power: 2	THE ELECTRIC CLOCK PROBLEM: There is a power failure at 11.00 pm on 1^st May 2007 and the power resumes only at 11.30 pm on the same day. An electric clock, which was functioning normally until the power failure, starts up as soon as the power supply restarts, but resumes backwards at half the usual speed. At what time on the following day will the electric clock show the same time as the actual correct time?
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19-06-08, 05:21 PM	#2 (permalink)
yoyorikee Junior Member Join Date: Jun 2008 Posts: 12 Thanks: 0 Thanked 1 Time in 1 Post Rep Power: 2	Re: THE ELECTRIC CLOCK PROBLEM: I think it is 11.45 of next the day
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27-06-08, 04:36 PM	#3 (permalink)
SKVenkatesan Junior Member Join Date: Jun 2008 Age: 37 Posts: 12 Thanks: 0 Thanked 1 Time in 1 Post Rep Power: 2	Re: THE ELECTRIC CLOCK PROBLEM: @ same day eve 7.10 the clock will show correct time clock "resumes from 11.00 am and backwards at half the usual speed". so after 8 hr 20 min (half 4 hr 10 mins) actual time is 7.10 pm and in clock 7.10 am
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16-02-09, 08:53 PM	#4 (permalink)
girish979 Junior Member Join Date: Feb 2009 Posts: 1 Thanks: 0 Thanked 0 Times in 0 Posts Rep Power: 1	Re: THE ELECTRIC CLOCK PROBLEM: wrong starts @ 10:30 Pm nxt day
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14-04-09, 12:45 PM	#5 (permalink)
manikanta.c.v Junior Member Join Date: Feb 2008 Posts: 1 Thanks: 0 Thanked 0 Times in 0 Posts Rep Power: 2	Re: THE ELECTRIC CLOCK PROBLEM: May 3rd 9.30 pm
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08-09-09, 04:29 PM	#6 (permalink)
Prasun MCA Junior Member Join Date: Sep 2009 Location: Krishnanagar(w.b) Age: 23 Posts: 14 Thanks: 6 Thanked 1 Time in 1 Post Rep Power: 1	Re: THE ELECTRIC CLOCK PROBLEM: Next day 9:30 PM am I right?
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