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Mathematics, 12.03.2020 16:41 bigg3826
Contractor wishes to build 9 houses, each different in design. In how many ways can he place these houses on a street if 6 lots are on one side of the street and 3 lots are on the opposite side?
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Contractor wishes to build 9 houses, each different in design. In how many ways can he place these h...
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