A certain number of workers are employed to construct a road in 24 days working 9 hours a day. How many hours a day should they work you the construction 6 days earlier?
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Number of hours to construct a road in 24 days = 9 hours
Number of hours to construct a road in 1 day = 9 × 24 =216
Number of hours to construct a road in 6 days earlier (24 - 6= 18) =216 ÷ 18 = 12
So people have to work for 12 hours to complete the construction 6 days earlier
Number of hours to construct a road in 1 day = 9 × 24 =216
Number of hours to construct a road in 6 days earlier (24 - 6= 18) =216 ÷ 18 = 12
So people have to work for 12 hours to complete the construction 6 days earlier
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