Question:
a committee of 7 has to be formed 9 boys and 4 girls in how many ways this can be done if committee has (i) exactly 3 girls (ii) atleast 3 girls (iii) atmost 3 girls
Answer:
Please refer to the following link for the video solution of your question at 13:45.
https://www.youtube.com/watch?v=mzb63o2lqiE&list=PLCzaIJYXP5YfGyNMhftfiUAh4aTyj_AMk&index=27
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