There are 52 white keys and 36 black keys on a standard piano. What is the probability that if a person did not look and hit the keyboard twice that he or she would first hit a white key and then hit a black key?

Question

There are 52 white keys and 36 black keys on a standard piano.  What is the probability that if a person did not look and hit the keyboard twice that he or she would first hit a white key and then hit a black key?

chycora · Answer

A.$$\frac{ 52 }{ 88 }$$			
B.$$\frac{ 1 }{ 1872 }$$	
C.$$\frac{ 169 }{ 484 }$$			
D.$$\frac{ 117 }{ 484 }$$

chycora · Answer

@TheWeeknd16 @thomaster @TheAsker2002 @smart8thgrader @Xx_H20_Avenger_xX @jabez177 @Here_to_Help15 @love_to_love_you

chycora · Answer

@Haseeb96

theweeknd16 · Answer

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0CCQQFjAB&url=https%3A%2F%2Fanswers.yahoo.com%2Fquestion%2Findex%3Fqid%3D20090911061951AAc5mib&ei=1RtNVdr_G8bloASM3oHgDA&usg=AFQjCNHw5tmCjCpXk3AYXEgvUJBSIJSqdQ

anonymous · Answer

Wrong subject

chycora · Answer

o yea srry but d is correct right

anonymous · Answer

Yeah