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12 July, 09:00

Four photographs

each measuring 8 inches by 10 inches are pinned on a rectangular bulletin board measuring 20 inches by 24 inches. How many of the bulletin board is not covered by photos

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  1. 12 July, 09:34
    0
    The answer should be 160 in^2.

    20 x 24 = 480

    (8 x 10) x 4 = 320

    480 - 320 = 160
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