Question
'V' can complete (1/2) of a project in 30 days, and 'V'
along with 'W' can complete the entire project in 20 days. Determine the time 'W' requires to complete 75% of the project alone.Solution
ATQ, Time taken by 'V' to complete the whole job alone = 30×2=60 days Let the total amount of work = LCM of 60 and 20 = 60 units Efficiency of 'V' =60/60 = 1 units per day Efficiency of (V + W) = 60/20= 3 units per day Efficiency of 'W' = 3−1 = 2 units per day Desired time = (0.75 × 60/2) = 22.5 days
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