A girl buys a grandfather clock two weeks back. This clock loses 24 mins in every one hour time. You set the time at 12 midnight and the clock now displays 3.00 am and it was stopped one hour back from now. So what is the actual time now?

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SUBBU

  • Jul 8th, 2006
 

The correct time is 5.12min at pesent,

Sol: the gap between 12 midnight and 3 AM is 3 hours as it looses 24 min an hour for 3 hours it looses 72 min so when clock shows 3 AM the correct time is 4.12 min but it was given that the clocked stopped 1 hr ago hence the correct time is 4.12=1 hr is 5.12 AM

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sumit

  • Jul 8th, 2006
 

i think the answer of this question is 6hr

as

when 3 hrs passed after 12 the clockl shows the time 3-24*3=1:48

it will take 2 more hrs to complete 3 hrs then now the time is 5:00 measn 5 hrs and from last 1 hr the clock was stopped so th total time is 6 hr

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ramya

  • Jul 13th, 2006
 

Hi,
Its 6 hrs

In 3 hrs it has five 36 ie.,  180/36 = 5
Already it shows 3 in clock  therefore 5-3=2.
3 (in clock) + 2 (found) + 1 (delay) = 6hrs

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srinivasan

  • Jul 31st, 2006
 

The right time must be 5:12AM.

REASON: Since the clock looses 24 minutes every hour,it should have lost 3*24=72 minutes at a clock display of 3AM. so1.12 hours must be added to get 4.12AM.Also since the clock backs 1 hour, the right time must be 5:12AM.

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TNLS.Srinivas

  • Dec 12th, 2006
 

the correct answer is 6 am...

let he actual time be n hours

by this the time shown by the faulty clock is

( n-(n*24/60)) = n-0.4n=0.6n

time one hour back when the clock was stopped is 3 hours by the faulty clock which means

0.6n=3

n=5 hours

since the cloack was stopped an hour back hence the current time = n+1

which is 6 am

V@5u

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meera_987

  • Apr 22nd, 2008
 

yes.. the correct answer is 6am....

at 12 o clock clock shows 12

then the instances are

actual time -> clock time
1:00 -> 12:36
2:00 -> 1:12
3:00 -> 1.48
4:00 -> 2:24
5:00 -> 3:00

since the clock is stopped and it was one hour back...
the actual time now is : 6:00 

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