#self doubt

Question

The number of bit strings of length 8 that will either start with 1 or end with 00 is? (https://gateoverflow.in/15898/isro2014-19)

In the ‘either or’ case we will include the ‘and’ case also?

means:

1 string starting with 1 

2 stating ending with 00

3 strings start with 1 and end with 00
 

all above cases will be included in either or  case or only 1,2 will be included?

 

Answer 1

All three case will be included.