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24 November, 17:12

If a hallway measuring 90 feet by 7 feet requires 1/2 a fluid ounce of cleaning solution per square foot, how much cleaning solution is needed to clean the hall?

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  1. 24 November, 17:15
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    90ft by 7ft gives an area of:

    90 x 7 = 630 sq ft

    1/2 fl oz is needed for each square foot

    630 x 1/2 = 315 fl oz required.
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