solve for x

The solution to ATM PIN fraud, for mathematicians?

(From the Wooster Collective)

Comments

One response to “solve for x”

  1. Dave Walker
    re: solve for x

    Two thoughts:

    The labour of typing alpha characters on an ATM keypad would probably cause someone to fail to meet the time constraint even if they had the answer to hand immediately

    Presumably the ATM would greet a correct response with “you are either an AI or carry an HP48 on you at all times, know how to use the ISOL function and can type extremely quickly – in either case, please go away”

    🙂

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