Hi!
He could have stopped at floor 2, 3, 5, 6, or 9
floor 0 could work because it’s two less lights than 8 BUT the lift is going up before stopping so we don’t count the ground floor as an answer
thank you for replying, but I still don’t get it how did u eliminated the possibilities for floors 1, 4 and 7
AND which lights should we consider as the ones that don’t work
4 and 7 could only happen if 3 of the lights weren’t working :))
oh then what it meant was by deleting 2 lights… I thought working means turning on and off automatically and if 2 are not “working” there must be 2 specific one for all of them that are off all the time
but as it says “could” I believe the provided theory of mine doesn’t suit this situation, right?
That’s right :)) they said two lights are definitely not working in the text but it could be any two lights that could be 8. So it would be 2,3,5,6,9
thank you for your explanation 