11 Plus Exams Forum

On a game show, there are 3 doors.
Behind one door, there is £1000 and behind another, there is a spider!
Behind the other door there is nothing.
Each door has a notice. However, only one notice is true.

Door 1 : There is nothing behind Door3

Door 2 : The spider is behind this door

Door 3 : There is a spider behind Door 1


Behind Which door is £1000???

Think in turn about what would be implied:

Statement one was true ... there WAS nothing behind door 3 ... what does this say about the other two statements? Can they both be false?

Then repeat.