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Pin Puzzle by strictlynaija: 12:59pm On Jul 07, 2015 |
Tuesday Morning brain exercise: Quantitative Reasoning A housewife forgot her Bank account PIN Code which is a 5 digit number, but luckily she remembered some hints on how to recall this PIN Code. Here are some of the clues: 1) The first digit is the square of the 2nd. 2) The sum of the 2nd and 3rd is 10. 3) The 4th is equal to the 2nd plus 1. 4) The 3rd and 5th makes 14. 5) The sum of all the digits is 30. What's the PIN Code? |
Re: Pin Puzzle by Nobody: 1:14pm On Jul 07, 2015 |
Let; A =1st digit B = 2nd C =3rd D=4th E=5th A = b*b B+c=10 D = b+1 C + e =14 Sum {a:e} = 30 B*b + b + (10-b) + (b+1) + (14-10+b) =30 B² + 2b -15=0, b=3. Pin code is 93747 |
Re: Pin Puzzle by Nobody: 1:21pm On Jul 07, 2015 |
The code is 93747... I'm 100% sure here... I got my proofs... It's just a simple logic cum math |
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