top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

What other time (or times) could it have been?

+1 vote
169 views

It was the middle of the winter in Scandinavia, and the poor boy, sick with a cold, was lying in bed. He woke up in the night, but he knew that the night lasted from 3:00 P.M. to 9:00 A.M. at that time of year. The boy wearily glanced at his clock and, thinking it said 4:42, buried his head back in the pillow. But as he fell asleep he realized he hadn't distinguished the hour hand from the minute hand. If it wasn't 4:42 in the morning.

What other time (or times) could it have been?

posted May 14, 2015 by Vishal

Share this puzzle
Facebook Share Button Twitter Share Button LinkedIn Share Button

1 Answer

+1 vote

WE have to reverse time hour and minute hand in 04:42,,, its obvious that hour hand will be bet 8 and 9 so our answer wil be 8 hours 20 minutes + ( something )
12 hrs = 360 degrees
we know 60min=30 degree
1 min = .5 degrees
= = = = =42 min= 21 degrees

===== at 04:42 hours hand moves 21 degrees further down

Now consider the reverse case
now between 20 minutes to 25 minutes we have 30 degrees

 === ==       30 degrees = 5min
       == ==    21 degrees = (5/30)*21 = 3.5 minutes

hence our answer is 08:23:30 , or 8 hours 23 minutes 30 seconds

so if it is 4:42 pm then ans is 8:23:30 pm and it it is 4:42 am ans is 8:23:30 am

answer May 14, 2015 by Ankit Kamboj



Similar Puzzles
+1 vote

In any day before noon how many times is the sum of the digits of the time equal to 15?
For instance 2:58 and 11:49 are two times when this is true.

+1 vote

I noticed that in my big wall clock, there is a time when the minute and hour clock are exactly between one and two. Also I notice both hands lie on top of each other.

What is the time I am talking about ?

+2 votes

You have the misfortune to own an unreliable clock.
This one gains exactly 12 minutes every hour.
It is now showing 10 pm and you know that it was correct at midnight, when you set it.
The clock stopped four hours ago, what is the correct time now?

0 votes

Exactly how many minutes is it before seven o'clock, if 40 minutes ago it was three times as many minutes past two o'clock?

enter image description here

...