There are nine students (5 boys & 4 girl...

There are nine students (5 boys & 4 girls) in the class. In how many ways(i) One student (either girl or boy) can be selected to represent the class. (ii) A team of two students (one girl & one boy) can be selected. (iii) Two medals can be distributed. (no one get both) (iv) One prize for Maths, two prizes for Physics and three prizes for Chemistry can be distributed. (No student can get more than one prize in same subject & prizes are distinct)

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