Question

A bag contains 5 white, 7 red and 8 black balls. If four balls are drawn one by one without replacement, what is the probability that all are white

• A. $\frac { 1 } { 969 }$
• B. $\frac { 1 } { 380 }$
• C. $\frac { 5 } { 20 }$
• D. None of these

Answer 1

Answer: (A)

$\frac { 1 } { 969 }$

Answer 2

Required probability