Gce Model Questions Vol1 2023 Mathematics Question 7
Practice objective / multiple choice question 7 from the 2023 Gce Model Questions Vol1 Mathematics examination.
The time \(T\) (in minutes) required to paint a wall varies directly with the area \(A\) (in m\(^2\)) and inversely with the number of painters \(P\), but each additional painter beyond the first reduces the overall efficiency by 4% (i.e. the effective number of painters is \(P\times(1-0.04(P-1))\)). When 3 painters paint a wall of area 120 m\(^2\) it takes 40 minutes. How many minutes will it take for 5 painters to paint a wall of area 180 m\(^2\)? Give your answer correct to two decimal places.
Answer Options
About This Question
This is Gce Model Questions Vol1 2023 Mathematics Question 7. It is one of the objective questions from the 2023 Gce Model Questions Vol1 Mathematics examination.
Difficulty level: Medium .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.