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Aditi Pandit
Asked: 2022-10-29T01:06:33+05:30 In:

A bag contains 10 white and 3 black balls. Balls are drawn one-by-one without replacement till all the black balls are drawn. The probability that the procedure of drawing balls will come to an end at the seventh draw, is
A. `(105)/(286)`
B. `(15)/(286)`
C. `(181)/(286)`
D. none of these

A bag contains 10 white and 3 black balls. Balls are drawn one-by-one without replacement till all the black balls are drawn. The probability that the procedure of drawing balls will come to an end at the seventh draw, is
A. `(105)/(286)`
B. `(15)/(286)`
C. `(181)/(286)`
D. none of these
Parabola
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  1. Correct Answer – B

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