Multiple choice

In a box, there are $20$ cards, out of which $10$ are labelled as A and the remaining $10$ are labelled as B. Cards are drawn at random, one after the other and with replacement, till a second A-card is obtained. The probability that the second A-card appears before the third B-card is?

  1. $\dfrac{15}{16}$
  2. $\dfrac{11}{16}$
  3. $\dfrac{13}{16}$
  4. $\dfrac{9}{16}$
Reveal answer Fill a bubble to check yourself
B Correct answer

Keep practicing — related questions