Waec Model Questions Vol1 2020 Mathematics Question 33
Practice objective / multiple choice question 33 from the 2020 Waec 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 efficiency e (units processed per hour). If 5 workers each having an efficiency of 80 units per hour can finish the batch in 4 hours, how many workers are needed to finish the same batch in 3 hours when the efficiency of each worker is increased to 100 units per hour? Give your answer as an exact fraction.
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About This Question
This is Waec Model Questions Vol1 2020 Mathematics Question 33. It is one of the objective questions from the 2020 Waec Model Questions Vol1 Mathematics examination.
Difficulty level: Medium .
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