Question

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? *

Answer 1

Step-by-step explanation:

As total number of buttons is 4+7+3+6=20

Therefore, probability of blue button on the floor is =

Totalno.ofbuttons

No.ofbuttons

=

20

4

=

5

1

Answer 2

Total number of buttons = 4 + 7 + 3 + 6

⇒ Total number of buttons = 20

⇒ Total number of outcomes = 20

Number of blue buttons = 4

⇒ Total number of favourable outcomes = 4

Hence, the probability that the button on the floor is blue is .

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