- 04/30/2019 at 8:11 am #727745EduGorillaKeymasterSelect Question Language :
There are three switches A, B and C which can be in ON/OFF position. Their settings change as per the following rules.
(i) If A is the only switch as ON, change B to ON.
(ii) If A and B are only switches as ON, change C to ON.
(iii) If all three switches are ON, change C to OFF.
(iv) For all other situations, all switches in ON are changed to OFF and all switches in OFF are changed to ON.
If only B is ON in the changed setting, which of the following could have been the original setting?
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