a) 18C6
b) 20P6
c) 25C4 * 6!
d) 19P5
In a picnic with 20 persons where 6 chocolates will be given to the top 8 children(the chocolates are distinct: first, s
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answerhappygod
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In a picnic with 20 persons where 6 chocolates will be given to the top 8 children(the chocolates are distinct: first, s
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