Solution Riddle 5 (variant)

SOLUTION RIDDLE 5 (VARIANT):

To solve the conundrum variant with four switches assume that when the bulb lights up , it takes a while to warm up . We also assume, as in the previous case, if we turn off the lamp after lighting a while, the heat from the bulb takes a few minutes to dissipate. Thus, to determine which is connected to the bulb switch can proceed as follows. We turn on the first switch and waited long enough for the bulb to warm up in the event that that's the right switch. Then back to turn off the first switch and turn on the second. After waiting a few minutes we turn on the third switch without turning off the second, and walked quickly to the room. If the bulb is turned off and hot , the switch is searched first . If the bulb is lit and warm , the switch is the second . If the bulb is turned on and is not hot the switch is the third , and finally, if the bulb is turned off and is not hot , the switch will be the fourth .

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