7 Workers working 6hrs a day can build a wall in 12 days. How many days will 3 workers take to build a similar wall, working 8hrs a day?
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Answer:
Work=man×day×hour
work =7×12×6.......... (1)
work=man×day×hours
work=3×days×8............ (2)
Since the work is equal ie the same wall is built
Therefore, from equation (1) and (2)
7×12×16=3×days×8
7×12×16/3×8=days
56 = days.
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