Multiple choice

One week before New Year, Joy sent $8$ greeting cards to his friends in Delhi and $12$ to his friends in Mumbai. If a card is picked randomly from the cards that were sent by him, what is the probability of picking a card which is not for a friend in Delhi?

  1. $\dfrac {8}{25}$
  2. $\dfrac {12}{25}$
  3. $\dfrac {3}{5}$
  4. $\dfrac {4}{5}$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Total cards = 8 + 12 = 20. Cards not for Delhi are the ones for Mumbai = 12. Probability = 12 / 20 = 3 / 5.