In a bag there are 15 red and 5 white balls. Two balls are drawn in succession, without replacement. The first drawn ball is found to be red. The probability that second ball is also red, is equal to
Answer & explanation
Correct answer: option 4
Total number of ways of selecting the second ball $={ }^{19} C_1=19$.
Total number of ways of selecting the second ball suitably $={ }^{14} C_1=14$.
Thus, required probability $\frac{14}{19}$.