CBSE Class 12-science Answered
100 cards numbered 1 to 100 are placed in a box. Shuffled thoroughly and then one card is drawn randomly. If it is known that the number on the drawn card is perfect square. What Is the probability that it is an odd perfect square ?
Asked by rajputvirendra621 | 30 Aug, 2018, 02:43: PM
Expert Answer
here first we have to choose a perfect square from 100, then it should be odd
choose a perfect square from 100
P = {1, 4, 9, 16, 25, 36, 49, 64, 81, 100 }
P(P)=10/100
odd perfect square
O = {1,9,25,49,81}
O ∩ P = {1,9,25,49,81}
P(O ∩ P )=5/100
P(O/P) = P(O ∩ P )/P(P) =5/10 = 1/2
Answered by Arun | 31 Aug, 2018, 10:08: AM
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