Kamilidn
Answered

Discover a world of knowledge and get your questions answered at IDNLearn.com. Ask anything and receive comprehensive, well-informed responses from our dedicated team of experts.

A boy forgot his PIN code which was 5-digit number, but luckily for him, he remembered some hints that could remind him of that password.

Here are those hints:
1. First digit is equal to the square of second digit.
2. Second digit plus third digit is equal to 10.
3. Fourth digit equal to the Second digit plus 1
4. Fifth plus 3rd digit is 14
5. Sum of all the five digits equals 30.

Whats the PIN code?

Sagot :

[tex]PIN:abcde\\\\a=b^2\\\\b+c=10\to c=10-b\\\\d=b+1\\\\e+c=14\to e+10-b=14\to e=b-10+14\to e=b+4\\\\a+b+c+d+e=30\Rightarrow b^2+b+10-b+b+1+b+4=30\\\\b^2+2b+15=30\\\\b^2+2b=30-15\\\\b^2+2b=15\\\\b(b+2)=15\\\\b(b+2)=3\cdot5\Rightarrow b=3\\\\a=3^2=9\\b=3\\c=10-3=7\\d=3+1=4\\e=3+4=7\\\\Answer:PIN\to93747[/tex]
Your presence in our community is highly appreciated. Keep sharing your insights and solutions. Together, we can build a rich and valuable knowledge resource for everyone. IDNLearn.com has the solutions to your questions. Thanks for stopping by, and see you next time for more reliable information.