There are three switches downstairs. Each corresponds to one of the three light bulbs in the attic. You can turn the switches on and off and leave them in any position.
How would you identify which switch corresponds to which light bulb, if you are only allowed one trip upstairs?
PUZZLE 1
K N V S SIVAKUMAR (QUALITY LEAD AT CHEGG INDIA PVT LTD) (964 Points)
11 May 2011
CAclubindia
