Study the given information carefully and answer the question that follow:
A committee of five members is to be formed out of 3 trainees 4 professors and 6 research associates In how many different ways can this be done if____
We have to select 2 trainees out of 3 trainees and 3 resarch associates out of 6 resarch associates.
Required number of ways = $$^3C_2*^6C_3 = 60$$ ways
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