Recent content by Grinder

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    Undergrad Mind challange when friends buys a car

    Hi! What about ACDB and BCDA then? :wink: What conditions are they violate? Or do they satisfy all conditions?? :smile: /Grinder:biggrin: and yes...I found the smilie button!
  2. G

    Undergrad Mind challange when friends buys a car

    :smile: Thanks! You have to justify the thought. Are there more? ;) /Grinder
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    Undergrad Mind challange when friends buys a car

    Four friends A, B, C and D are buying a car together. They agree that everyone should have one of the first four trips all alone. But the following conditions apply: 1. If D is allowed to get on the first trip, C would have the third trip. 2. If A or D take the second trip, C would...