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Probability Chapter 14 Exercise 14.1 Q No 21 and 23 CBSE Class 10 Maths
Автор: YPS Academic Solutions
Загружено: 2026-01-15
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Q 21: 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 it 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?
Q 23: A game consists of tossing a one rupee coin 3 times and noting its outcomes each time. Hanif wins if all the tosses give the same result that is three heads or three tails, and loses otherwise. calculate the probability that Hanif will lose the game.
CBSE 2019
#probability
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