Question

Q11. A bag contains 5 black, 8 gold and 7 silver caps. 2. caps are drawn at random and without replacement. What is the probability that both are gold?
O (A) 14/95
O (B) 13/95
O (C) 11/95
O (D) 17/95​

Answer 1

Answer:

Given 5-white balls

7-red balls

8-black balls

P(no while)

=

20

C

1

15

C

1

×

20

C

1

15

C

1

×

20

C

1

15

C

1

×

20

C

1

15

C

1

=(

20

15

)

4

=(

4

3

)

4

=

256

81

P (at least one white ball ) = 1-P(no white ball)

=1−

250

81

=

256

125

Answer 2

Answer:

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