Скачать или смотреть Exercise 14.1 class 10 Probability Q19 to Q25 | Probability coins, dice, cards | By RK Sir

Exercise 14.1 class 10 Probability Q19 to Q25
Exercise 14.1 class 10 Probability Q10 to Q18
Exercise 14.1 class 10 Probability Q1 to Q9
Probability Introduction class 8, class 9, class 10
Probability coins, dice, cards


Q19. A child has a die whose six faces show the letters as given below: A B C D E A
The die is thrown once. What is the probability of getting (i) A? (ii) D?

Q21. A lot consists of 144 ball pens of which 20 are defective and the others are good. Nuri
will buy a pen if it is good, but will not buy if it is defective. The shopkeeper draws one
pen at random and gives it to her. What is the probability that
(i) She will buy it ?
(ii) She will not buy it ?

Q23. A game consists of tossing a one rupee coin 3 times and noting its outcome each time. Hanif wins if all the tosses give the same result i.e., three heads or three tails, and loses otherwise. Calculate the probability that Hanif will lose the game.
Q24. A die is thrown twice. What is the probability that
(i) 5 will not come up either time? (ii) 5 will come up at least once?

Q25. Which of the following arguments are correct and which are not correct? Give reasons
for your answer.
(i) If two coins are tossed simultaneously there are three possible outcomes—two
heads, two tails or one of each. Therefore, for each of these outcomes, the
probability is 1/3
(ii) If a die is thrown, there are two possible outcomes—an odd number or an even
number. Therefore, the probability of getting an odd number is 1/2.

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