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[" EXAMPLE 12.In a small village,there a...

[" EXAMPLE 12.In a small village,there are 87families,of which 52families have "],[" at most 2children.In a Rural Development Programme,20families are to be chosen "],[" for assistance,of which at least 18families must have at most 2children.In how "],[" many ways can the choice be made? INCERTEXEMPLAR] "]

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In a village,there are 87 families of which 52 families have at most 2 children.In a rural development programme,20 families are to be helped chosen for assistance,of which at least 18 families must have at most 2 children.In how many ways can the choice be made?

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