A toy train produces at least 10 different tunes when it moves around a circular toy track of radius 5 meters at 10 meters per minute. However, the toy train is defective and it now produces only two different tunes at random. What are the odds that the toy train produces 4 consecutive music tunes of the same type?

a) 1 in 16
b) 1 in 4
c) 1 in 8

• 1/2*1/2=1/4
• 13 years agoHelpfull: Yes(4) No(16)
• (1/2)^4=1/16
  hence a
• 13 years agoHelpfull: Yes(4) No(10)
• Hi Admin ,plz explain ds question ..i m confused ...
  A toy train produces at least 10 different tunes when it moves around a circular toy track of radius 5 meters at 10 meters per minute. However , the toy train is defective and it now produces only two different tunes at random. What are the odds that the toy train produces for consecutive music tunes of the same type?
  In some sites , Ans is given as 1/4 .How is it possible ??
  I think
  prob of toy produces consecutive music ==2*(1/2)^2 =1/2
  
  odd=prob of desired/prob f undesired
  =1/2 / 1/2
  =1
  
  but answer : 1/4 ?????????
  
• 12 years agoHelpfull: Yes(0) No(6)