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19 August, 01:39

On a new construction site an electrician can install a new light fixture in 20 minutes a project cost for 24 new fixtures to be installed on each of four floors if a work day is 8 hours how many work days will it take to electricians to complete the installation

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  1. 19 August, 02:01
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    1 new light fixture = 20 minutes24 new fixtures = 24 x 20 = 480 min

    we know, 480 min = 60min x 8 hour (a day of work)

    total = 4 floors1 floor > 24 fixtures = 1 day2 floor > 24 fixtures = 1 day3 floor > 24 fixtures = 1 day4 floor > 24 fixtures = 1 day >> total 4 days (8hrs each day)

    from question, we found that: For 24 fixture - he needs 480 min (or 8hr) which is nothing but 1 work day. now, 1 floor > 24 fixtures = 1 day 2nd floor > 24 fixtures = 2nd day

    ... And on 4th Day he finishes, a) Floor >1 floor + 2 floor + 3 floor + 4 floor b) Fixture> 24+24+24+24 = 96 fixturesc) Days> 4 days.
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