Question
18 workers can complete 9 tasks in 24 hours. Find the time
required by 12 workers to finish 15 tasks.Solution
ATQ,
Let the efficiency of each worker be 'x' tasks per hour
Let the required time be 't' hours
Therefore, (18x Ă— 24) / 9 = (12x Ă— t) / 15
Or, t = (18x Ă— 24 Ă— 15) / (12x Ă— 9) = 60
Required time = 60 hours
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