top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

Your friend gave you a clock for your birthday, but unfortunately, it's ........... what is the correct time now?

0 votes
421 views

Your friend gave you a clock for your birthday, but unfortunately, it's very unreliable. This one gains exactly 12 minutes every hour.

It is now showing 10pm and you know that it was correct at midnight, when you set it.

If the clock stopped four hours ago, what is the correct time now?

posted Feb 16, 2015 by Pardeep Kohli

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

1 Answer (Check Answer ▼)





Similar Puzzles
+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

A clock was correct at midnight.

From that moment it began to lose four minutes per hour.

The clock stopped three hours ago showing 12:08pm.

The clock runs for less than 24 hours. What is the correct time now?

+2 votes

Clock A was correct at midnight.

From that moment it began to lose two and a half minutes per hour.

The clock stopped one hour ago showing clock B.

What is the correct time now? The clock runs for less than 24 hours.

Clock A 00:00
Clock B 17;15

0 votes

A clock was correct at midnight.

From that moment it began to lose three minutes per hour.

The clock stopped 90 minutes ago showing 17:06.

The clock runs for less than 24 hours.

What is the correct time now?

+2 votes

Clock A was correct at midnight. From that moment it began to lose four minutes per hour.

The clock stopped two hours ago showing clock B. What is the correct time now? The clock runs for less than 24 hours.

enter image description here

...