Neco Model Questions Vol1 2017 Mathematics Question 39
Practice objective / multiple choice question 39 from the 2017 Neco Model Questions Vol1 Mathematics examination.
The time \(T\) (in hours) required for a machine to process a batch varies directly with the number of workers \(W\) and inversely with the square of the efficiency factor \(E\); that is, \(T = k \dfrac{W}{E^{2}}\) for some constant \(k\). If 5 workers each having efficiency 2 process a batch in 8 hours, how many workers with efficiency 3 are needed to process the same batch in 4 hours? Give your answer as an exact fraction.
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About This Question
This is Neco Model Questions Vol1 2017 Mathematics Question 39. It is one of the objective questions from the 2017 Neco Model Questions Vol1 Mathematics examination.
Difficulty level: Medium .
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