ICSE Class X Math 2016 Solved Paper

A game of number has cards marked with 11,12,13,...40. A card is drawn at random. Find the Probability that the number on the card drawn is :

Question : 13

Total: 57

A perfect square

Solution:

Total number of all possible outcomes =30 .
Since required (favourable) outcomes are : 16,25 and 36 .
∴ The number of favourable outcomes =3 .
∴P( A perfect square) =‌

=‌

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