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 of 57

Marks: +1, -0

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)

=\;{3}/{30}=\;{1}/{10}

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