By using 16 bit binary in BCD , how many switching functions can exist ?
Now , since this is BCD anything above 1001 is invalid. Considering 16 bits : 1001 1001 1001 1001
Above is number of possible combinations : 0 - 9999 There are 10^4 possible combinations. Number of switching functions : 2^(10^4)
Answer given is (10^4). Am I missing something obvious ?
You're right and they're wrong.