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Mathematics, 28.01.2020 16:51 rissamarie6538

Acontractor 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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Acontractor wishes to build 9 houses, each different in design. in how many ways can he place these...
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