Ex 15.1

Chapter 14 Class 10 Probability
Serial order wise

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Ex 14.1, 15 Five cardsββthe ten, jack, queen, king and ace of diamonds, are well-shuffled with their face downwards. One card is then picked up at random. (i) What is the probability that the card is the queen? Total number of cards = 5 Number of cards that are queen = 1 P (getting a queen) = (ππ’ππππ ππ πππππ  π‘βππ‘ πππ ππ’πππ)/(πππ‘ππ ππ’ππππ ππ πππππ ) = π/π Ex 14.1, 15 (ii) If the queen is drawn and put aside, what is the probability that the second card picked up is (a) an ace? (b) a queen? Total number of cards left = 4 Number of cards that are ace = 1 P (getting an ace) = (ππ’ππππ ππ πππππ  π‘βππ‘ πππ πππ)/(πππ‘ππ ππ’ππππ ππ πππππ ) = π/π Number of cards that are queen = 0 P (getting a queen) = (ππ’ππππ ππ πππππ  π‘βππ‘ πππ ππ’πππ)/(πππ‘ππ ππ’ππππ ππ πππππ ) = 0/4 = 0