There are 8 YES and NO questions. In how many ways can these be answered?

(1) 512
(2) 256
(3) 257
(4) 513

• 2^8=256 . there is only two ways of answering the question...either YES or NO.
  thats why for first 2 ways to ans,for second also 2 ways thus..
  2^8=256 .
  :)
• 11 years agoHelpfull: Yes(0) No(0)