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Ram put some buttons on the table. There were 4 blue, 7 red, 3 black and 6 white buttons in all. All of a sudden, a cat jumped on the table and knocked out

one button on the floor. What is the probability that the button on the floor is blue?
a. 7/20
b. 3/5
c. 1/5
d. 1/4


The probability that the button on the floor is  1/5
0 0 0
Option (c) 1/5 is correct . 
0 0 0
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