wolfgang Posted November 7, 2010 Report Share Posted November 7, 2010 Four doors , 1-4 have four keys. seven keys where hanged on a board,with numbers, 3-9. If the key number 5 opens the door number 1. the key number 3 opens the door numer 2. and the key number 9 opens the door number 3. which key can open the door number 4? Sorry about my English .... Quote Link to comment Share on other sites More sharing options...
0 sparkyboy6 Posted November 7, 2010 Report Share Posted November 7, 2010 Can we have a hint? Quote Link to comment Share on other sites More sharing options...
0 Guest Posted November 7, 2010 Report Share Posted November 7, 2010 (edited) I am not sure but i would say Key 7.For 2 reasons.First if 7 opens door 4 then all the key numbers are single(?not good english, i mean 1,3,5,7,9,11 <-- those numbers) .And second we can say that 3 is 2 steps behind 5...so 7 is two steps behind 9.They also make two nice Xes if you make it on paper! Edited November 7, 2010 by Tsopi Quote Link to comment Share on other sites More sharing options...
0 Guest Posted November 7, 2010 Report Share Posted November 7, 2010 Hmm....suppose there are keys 3,4,5,6,7,8,9 okay and, key number 5 opens the first door...and key number 3 opens the second door. 9 opens the third one...so...according to the pattern of skipping a single digit, i will say key no. 7 opens the 4th door... Quote Link to comment Share on other sites More sharing options...
0 Guest Posted November 7, 2010 Report Share Posted November 7, 2010 i think it is 7 coz keys which opens the rooms are all odd numbers like 3,5,9.Hence 7 is the answer.All oters are even no. 4,6,8. Quote Link to comment Share on other sites More sharing options...
0 wolfgang Posted November 7, 2010 Author Report Share Posted November 7, 2010 Can we have a hint? there is a relationship between each door and it`s key number. Quote Link to comment Share on other sites More sharing options...
0 wolfgang Posted November 7, 2010 Author Report Share Posted November 7, 2010 Hmm....suppose there are keys 3,4,5,6,7,8,9 okay and, key number 5 opens the first door...and key number 3 opens the second door. 9 opens the third one...so...according to the pattern of skipping a single digit, i will say key no. 7 opens the 4th door... not the right one as far as I did. Quote Link to comment Share on other sites More sharing options...
0 wolfgang Posted November 7, 2010 Author Report Share Posted November 7, 2010 i think it is 7 coz keys which opens the rooms are all odd numbers like 3,5,9.Hence 7 is the answer.All oters are even no. 4,6,8. nice try but it is not what I planed. Quote Link to comment Share on other sites More sharing options...
0 sparkyboy6 Posted November 7, 2010 Report Share Posted November 7, 2010 Is it the number 4? Quote Link to comment Share on other sites More sharing options...
0 Guest Posted November 7, 2010 Report Share Posted November 7, 2010 key number 8 opens door number 4. the numeral 5 has one half circle in it, 3 has 2, and 9 has 3. 8 is the only one with 4. Quote Link to comment Share on other sites More sharing options...
0 Guest Posted November 8, 2010 Report Share Posted November 8, 2010 (edited) key 6 will open the 4th door. 1st door (1+5=6) 2nd door (2+3=5) 3rd door (3+9=12)double of 1st door 4th door (4+6=10)double of 2nd door Edited November 8, 2010 by yajjii Quote Link to comment Share on other sites More sharing options...
0 Guest Posted November 9, 2010 Report Share Posted November 9, 2010 door number & key number construct 3 two digit numbers. 15,23,39 15+8=23 23+(8x2)=39 39+8=47 Door number 4 is opened by key number 7. lol this is just a guess. Quote Link to comment Share on other sites More sharing options...
0 wolfgang Posted November 11, 2010 Author Report Share Posted November 11, 2010 (edited) The key number 8 is the correct one:- 3..4..5..6..7..8..9 I started from key No. 5 to open the door No. 1 ,I multiplied (1x5)=5,so I moved 5 steps, 6..7..8..9..3 to reach the key No. 3 which opens the 2nd door, again I multiplied(2x3)=6, and I moved 6 steps,4..5..6..7..8..9 so the key No. 9 will open the door No.3,(3x9)=27, by moving 27 steps we will reach the key No. 8.... Edited November 11, 2010 by wolfgang Quote Link to comment Share on other sites More sharing options...
Question
wolfgang
Four doors , 1-4 have four keys.
seven keys where hanged on a board,with numbers, 3-9.
If the key number 5 opens the door number 1.
the key number 3 opens the door numer 2.
and the key number 9 opens the door number 3.
which key can open the door number 4?
Sorry about my English ....
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