78. Exemplar Exercise Problem XXXVII

A child’s game has \( 8\) triangles of which \(3\) are blue and rest are red, and \(10\) squares of which \(6\) are blue and rest are red. One piece is lost at random. Find the probability that it is a

1. triangle

 

2. square

 

3. square of blue colour

 

4. triangle of red colour

 

The probability of lost figure is a triangle is $\frac{i}{i}$.

 

The probability of lost figure is a square is $\frac{i}{i}$.