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# A rectangular board measuring 9 inches by 11 inches is to be covered w

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Re: A rectangular board measuring 9 inches by 11 inches is to be covered w [#permalink]
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The smallest number of tiles will be obtained by using as many $$2$$ inch by $$3$$ inch rectangular tiles as possible since they are the larger tiles. As shown in the diagram above, $$16$$ such tiles can be placed on the board, leaving three square inches to be covered with $$1$$-inch square tiles. The total number of tiles used is $$16 + 3 = 19.$$

Therefore, A is the answer.
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Re: A rectangular board measuring 9 inches by 11 inches is to be covered w [#permalink]
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Re: A rectangular board measuring 9 inches by 11 inches is to be covered w [#permalink]
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