Quiz

lim peh ka li kong

Me heard of an interesting Quiz to share.

====

There are 3 lamps in the attic.

The 3 switches for the 3 lamps are located on ground floor.

All the switches, as well as the lamps, are in random position.

How can you determine the randomly positioned switches matching the lamps correctly?

You can switch on any number of the switches but you are only allowed to go up to the attic once before giving your answer.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
Answer:

You switch on 1 switch for 5 minutes, then you switch it off and switch on another switch before going up to the attic.

The lamp which is lighted is connected to the switch which is switched on.

The lamp which is not lighted but feels warm is connected to the first switch which you switched on

The lamp which is cold is, of course, connected to the untouched switch.

lim peh kong wan liao