A bag contains 25 cards numbered from 1 to 25 A card is drawn at random from the bag Find the probability that the number on the drawn card is Mathematics CBSE class 10 2015

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A bag contains 25 cards numbered from 1 to 25. A card is drawn at random from the bag. Find the probability that the number on the drawn card is: Mathematics CBSE class 10 2015

A bag contains 25 cards numbered from 1 to 25. A card is drawn at random from the bag. Find the probability that the number on the drawn card is:
(i) divisible by 3 or 5
(ii) a perfect square number


By:tarun101

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Answers

Let S be the sample space i.e  bag contains cards numbered from 1 to 25.
n(S)  = 25 
A be event of getting the number on this card is divisible by both 2 and 3 is
n(A) = { 6,12,18,24} = 4
P(A) = n(A) / P(A) = 4/ 25.

akialwayz

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