Question

A box contains 5 red and 4 white balls. Two balls are drawn successively from the box without replacement and it is noted that the second one is white. Then the probability that the first one is white is

• A. $\frac{1}{6}$
• B. $\frac{5}{6}$
• C. $\frac{1}{2}$
• D. $\frac{1}{9}$

Answer 1

Answer: (A)

$\frac{1}{6}$

Answer 2

The correct option is (A): $\frac{1}{6}$