E: 30/11 Win a Touchscreen Sudoku hand held game (x2)

One-Eye

Mensa Details

Entry Form

A Clock was correct at midnight showing 00:00
From that moment it began to lose four minutes per hour.
The clock stopped two hours ago showing 17:44
What is the correct time now?
(The clock runs for less than 24 hours)


In case anybody wants to try it themselves I have blanked out my answer - If you click and hold your mouse button down on the words "Suggested Answer" below then drag your mouse down the page the answer will be revealed.

Suggested Answer:-

Answer = 21:00 (17:44 is 19x56minutes)

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The correct answer to last month's prize puzzle question was: Plus, minus, divide, multiply

lynsey85

i came up with a different answer - 20:52 - 17 (hours) x 4(mins lost) = 68, 68 mins added onto 17:44 = 1 hour 8 mins later than clock said = 18:52 + 2 hours (it stopped 2 hours ago so stopped losing time 2 hours ago) = 20:52

mrsmonkey

I came up with yet another answer, but I don't know how to hide it......so I agree with lynsey85's answer.....but add another 3 minutes to the time, because the clock losses' 4 minutes an hour, and 1 hour divided by 4 is 4 x 15mins.....so 44 minutes would be another 3 minutes lost.

I hope that makes sense, it did to me in my little world.

hoogervaaner

I got the same answer as One-Eye and used a different route to calculate. I wrote down correct times in one column, then wrote incorrect times in next column, (knocking 4 mins off each one until I got to 17:44 which was correct time ??:?? don't want to ruin it for those who like puzzles) then added the required two hours to the correct time) One Eye's method is way quicker!

00:00 00:00
01:00 00:56
02:00 01:52 etc, etc

One-Eye

Solution to Mensa Puzzle for December 2012:

Answer = CARDS, HOLLY, ELVES, ROBIN, PARTY

loserx1

I got a different answer

17x4 mins = 68mins

+ 3 mins for the part hour = 71mins lost

then add the 2 hours that it been stopped

So 17.44 + 3 hours 11 mins = 20.55